Accessories

With a 70-pound carrying capacity and coil-spring suspension, the Coho XC® is our all-terrain bike trailer for singletrack bikepacking adventures.

The 7-speed Piccolo Trailercycle keeps your child close, while introducing them to the joy and freedom of biking. With an innovative adjustable seat post, this Trailercycle grows alongside your family and fits riders between the ages of 4 and 10. - Lightweight aluminum frame, 18.0 lbs - Recommended for children 4 to 10 years old and up to 85lbs - Features Burley's patented hitch system with ball-bearing guided pivots providing excellent handling and stability - 20 inch wheel - Includes Burley's Moose rack to attach the trailercycle to the bike - Adjustable handlebar and seat post - Includes safety flag and both wheel and rear reflectors

The Deluxe Wall-Mount Repair Stand easily mounts to any post or wall stud. This shop-quality stand places the bike approximately 14.5 inches from the wall, so you'll have plenty of work space. The awesome clamp is Park's Professional Micro-Adjust model, which features replaceable rubber jaws; fits seatposts and frame tubes from 7/8 to 3-inch diameter; includes recesses for cable housing and rotates 360 degrees for optimum bike positioning. This great stand lets you work on your bikes just like a pro and is built to last.

- Bicycle Trailer Kit and Stroller Kit included. - Easy conversion from cycling to strolling. - Secure attachment to bike using Thule ezHitch axle mount - On-board storage of strolling wheel. - Comfortably seats two children - Adjustable handlebar—ergonomic, adjustable handlebar for maximum parent comfort - Compatible with a range of accessories - Easy folding for storage and transporting - Extra storage space for hauling around cargo - Meets international safety standards

Big cities call for big protection, and Kryptonite's New York Fahgettaboudit delivers with 14mm six-sided chain links made from hardened manganese steel. Wrap this burly lock around your frame worry-free thanks to the durable nylon cover that protects your bike's paint from scratches, and leave with peace of mind knowing the 15mm hardened Max-Performance steel shackle is on duty. With a double deadbolt design to protect against twist attacks, would-be thieves with an eye on your bike can fahgettaboudit because you're the only one with access to your bike with three stainless steel keys--one of which is lighted for night access!

Power every ride. We've taken the reliability, elegance, and features of Quarq's legendary crank-based power meter and dropped the barrier to entry once again. This new power meter platform is entirely contained within the DUB spindle for clean integration that fits more bikes than ever. It's invisible technology that adds minimal weight and will help you get to the finish line faster, and it can be used to upgrade any eTap AXS bike. - An elegant, integrated design - DUB-PWR spindle-based unit measures left-side power to calculate total watts - Proven Quarq reliability and accuracy - Long battery life (400+ hours) to power a season of rides - User-replaceable lithium AAA battery - DUB bottom bracket adds durability and simplicity - Waterproof (IPX7 waterproof to 1 meter for 30 minutes) - Lightweight (less than 40g heavier than standard crankset) - Simple and affordable power meter upgrade option - Right Arm/BB/Spider/Chainrings NOT INCLUDED

Power every ride. We've taken the reliability, elegance, and features of Quarq's legendary crank-based power meter and dropped the barrier to entry once again. This new power meter platform is entirely contained within the DUB spindle for clean integration that fits more bikes than ever. - An elegant,integrated design - DUB-PWR spindle-based unit measures left-side power to calculate total watts - Proven Quarq reliability and accuracy - Long battery life (400+ hours) to power a season of rides - User-replaceable lithium AAA battery - DUB bottom bracket adds durability and simplicity - Waterproof (IPX7 waterproof to 1 meter for 30 minutes) - Lightweight (less than 40g heavier than standard crankset) - BB not included

You're lookin' at the Surly Big Dummy Bag Version 2.0. Just like the original, it's designed to work with Dummy-style rail systems found on cargo bikes like our Big Easy, Big Dummy, and Big Fat Dummy. We've made it easier to install, simpler to use, and refined its size and shape to better suit the stuff we haul most often. The sequel is slightly smaller, but you can still cram two full grocery bags in there on shopping day. Three if you like your potato chips pulverized. The Big Dummy Bag features an expandable cargo flap and side panels that can lie flat or cinch up to accommodate loads of varying dimensions. It also has two sizeable inner pockets with a dedicated divider so you can keep your legal documents tidy. It's furnished with adjustable daisy chains, straps, and buckles to help you secure bulky shit that may not fit otherwise, as well as three stainless steel drainage ports so you can hose it out after hauling your compost to the dump. Lastly, the bag's main body is tough 1680D nylon and its liner is 400D nylon. The material is also bluesign® Approved. So are the buckles and other hardware. This means the materials are sustainably produced to have the lowest possible impact on humanoids and our environment. - 22.5L capacity per bag

Our best pair of lights. Daytime running lights for visibility, and Kindbeam that lights the way while staying out of oncoming riders' eyes. Do the (b)right thing A ready-for-anything light set that pairs Daytime Running Light visibility with the bright commuter Pro RT front light. Kindbeam keeps more light on the path ahead of you while avoiding oncoming riders' eyes, for a bright light that won't blind oncoming riders. It's equipped with a visible fuel gauge, wireless connection to tail light, and charge-back that allows you to use the light as a battery bank to charge gadgets. All buttoned up with a Flare RT for the top light package for any ride. - See and be-seen light set for everything you need to ride with lights every ride, day or night - Commuter Pro RT with Kindbeam keeps light on the ground ahead of you and out of oncoming riders' eyes - Flare RT provides ultimate visibility for any road, city, or path - Specifically designed focus, flash, and range flash patterns for daytime visibility for up to 2km - Commuter Pro modes: high 1000LM — 1.5hrs, low 500LM — 3hrs, day flash 300 LM — 12hrs - Flare RT Flash modes: 90LM — 6hrs, 45LM — 12hrs, 5LM — 15hrs, Steady modes: 25LM — 4.5hrs, 5LM — 13.5hrs - Blendr-compatible for integrated mounting on compatible Blendr stems, helmets, and helmet mounts - USB-rechargeable with included USB-C and micro USB cable

Stick to your fitness plan year round with the help of the Saris Mag+ trainer. It is the perfect way to keep your legs warm when it's cold, dry when it's wet, and safe when it's too dark to ride outside. With this turbo trainer, it's easy to turn your bike into your go-to calorie burner — no matter the season. Simply attach the handlebar-mounted shifter to change resistance during your workout without having to leave your bike. Want to train with Zwift or Rouvy? All you need is a speed sensor. Visit our setup guide to learn how to get started. - Magnetic resistance unit provides a quiet and frictionless ride. - Linear resistance boosts workout intensity to match each pedal stroke and gear click. - Mag+ comes with convenient, adjustable handlebar-mounted shifter. - Compatible with Zwift and other indoor cycling apps

Lightweight and safe rear-frame-mounted child bike seat with a contemporary design, providing premium comfort for your child. Features - Maximum child comfort and a safe, custom fit thanks to the adjustable padded 5-point harness - Provides a smooth ride for your child in the soft and shock-absorbing seat - Lightweight yet sturdy seat combining a hard outer shell with soft padding for premium child comfort - Very quick, easy, and convenient securing of your child with the magnetic childproof safety buckle - Ensures a perfect fit as your child grows thanks to adjustable foot rests and foot straps - Added visibility thanks to built-in reflector - Easy to clean and to keep dry due to the seat's water-repellent materials - Designed and tested for children from 9 months* to 6 years old, up to 48.5 lbs/22 kg. - Quick and easy mounting of the child bike seat on your bike *Consult a pediatrician for children under 1 year old. Technical specifications - Weight capacity: 48.5 lb - Weight: 10.1 lb - Safety harness: 5-point - Meets safety standards

Power every ride. We've taken the reliability, elegance, and features of Quarq's legendary crank-based power meter and dropped the barrier to entry once again. This new power meter platform is entirely contained within the DUB spindle for clean integration that fits more bikes than ever. - An elegant,integrated design - DUB-PWR spindle-based unit measures left-side power to calculate total watts - Proven Quarq reliability and accuracy - Long battery life (400+ hours) to power a season of rides - User-replaceable lithium AAA battery - DUB bottom bracket adds durability and simplicity - Waterproof (IPX7 waterproof to 1 meter for 30 minutes) - Lightweight (less than 40g heavier than standard crankset) - Wide chainline crankset for bikes with up to 700x45c or 27.5x2.1" tire widths (43/30T chainrings only) - BB not included

Power every ride. We've taken the reliability, elegance, and features of Quarq's legendary crank-based power meter and dropped the barrier to entry once again. This new power meter platform is entirely contained within the DUB spindle for clean integration that fits more bikes than ever. It's invisible technology that adds minimal weight and will help you get to the finish line faster, and it can be used to upgrade any eTap AXS bike. - An elegant, integrated design - DUB-PWR spindle-based unit measures left-side power to calculate total watts - Proven Quarq reliability and accuracy - Long battery life (400+ hours) to power a season of rides - User-replaceable lithium AAA battery - DUB bottom bracket adds durability and simplicity - Waterproof (IPX7 waterproof to 1 meter for 30 minutes) - Lightweight (less than 40g heavier than standard crankset) - Simple and affordable power meter upgrade option - Right Arm/BB/Spider/Chainrings NOT INCLUDED

Updated with a smoother, more solid rotation system! Originally designed for professional Pro Tour mechanics. The PRS-22.2 firmly holds any bike without clamping the frame or seat post by supporting the bottom bracket then locking either the front or rear dropouts. Works with any style axle system, including quick release and all sizes of thru-axles without cumbersome adaptors. Ideal for cleaning and general repair work, the PRS-22.2 features a solid tripod base and folds compactly for storage or transport. - Precisely constructed of anodized 6063 T6 lightweight aluminum and durable composites (12.5lbs, 5.67kg) - Adjustable BB height of 30" to 45" / 76cm to 114cm - 360 degree horizontal rotation allows easy access to all sides of the bike - Customizable bottom bracket supports accommodate a wide variety of BB shells - Main beam is adjustable fore and aft to customize balance points - Adjustable collar features receivers for optional accessories (sold separately) 106 Work Tray and PHT-1 Paper Towel Holder - Easily transported in the BAG-20 (sold separately)

Perfect for taking to races and rides, the Portable Workbench is a bench that folds for easy transport and storage. It features a large work surface with specially sized slots, holes, and recesses and for holding tools, shop towels, lubes, beverages, etc. The folding steel legs provide a solid base for a toolbox and supplies, too.

The Sport Mechanic Bike Repair Stand prioritizes the most critical aspects of the entire Feedback Sports bike repair stand lineup – compatibility, stability, durability and portability. The 360-degree rotating clamp uses a spinner knob closure that can accommodate up to 1.9? (4.8cm) and support 65lbs (29.5kg). Plus, the Sport Mechanic leverages the same 54? (137cm) wide base, with rubber-coated end caps, for amazing stability on any surface. And when the service day is done, it folds in to a compact unit for storage or travel. Add an available Travel Bag and a Tool Tray for the optimal bike maintenance setup.

Portable bicycle pressure washer with three lances, custom waterproof bag, cleaning solution, Bike Protect, Drivetrain Cleaner and C3 Ceramic Lube. Water supply is required. - Includes 3 lances; 1 for bicycles, 1 for motorcycles (higher- pressure), 1 bespoke (adjustable higher presser) for heavy grime, custom waterproof dry bag carry case - Also includes snow foam lance for Muc-Off Nano Tech Bike Cleaner creating a thick snow foam for deep cleaning - Weight: 15lbs - Intended for use with cold water only

Meet the new fail-safe for your tailgate, featuring padded protection for your most prized possession. With durable PVC tarpaulin and a micro-brushed inner lining, the FOX Overland pad is designed to keep your truck and bikes clean and secure. - Raised bumpers (reinforced with high-density foam) keep down tubes secured in place to minimize frame contact - Each pad comes with two strap extenders for eMTBs - Fully adjustable rear opening to maintain function of your backup camera and keep your tailgate handle accessible at all times - Durable PVC tarpaulin on the outside and a micro-brushed inner lining ensure your tailgate is protected from cosmetic damage - Every size of Overland features cinch straps to adjust the exact height and width of your truck’s tailgate - Full-size (up to 6 bikes) - for Full Size Trucks (F-150 to F-350, 1500 - 3500 series, Tundra and Titan)

The Surly Kid Corral is just that: A Corral where you can store your kids when they’re riding on the deck of your Big Easy, Big Dummy, or Big Fat Dummy. Designed to be semi-modular, the corral offers up different configurations to fit your unique human-corralling needs. As your family grows in size or number, you can adjust the Kid Corral to give your tiny humans more or less freedom. The Kid Corral Kit comes equipped with a full safety rail system, two soft Deck Pads, and a Deck Bar comfortable enough for tiny paws. As an added bonus, the Kid Corral system is tested and compatible with the Thule Yepp Maxi child seat, for riders of smaller proportions. - Semi-modular system is designed to easily add or remove sections of the corral rails to fit your passenger safety needs - Kit includes the full safety rail system, two soft Deck Pads, Deck Bar and required mounting hardware - The Kid Corral system is also compatible with the Thule Yepp Maxi child seat, for riders of smaller proportions

Power every ride. We've taken the reliability, elegance, and features of Quarq's legendary crank-based power meter and dropped the barrier to entry once again. This new power meter platform is entirely contained within the DUB spindle for clean integration that fits more bikes than ever. - An elegant, integrated design - DUB-PWR spindle-based unit measures left-side power to calculate total watts - Proven Quarq reliability and accuracy - Long battery life (400+ hours) to power a season of rides - User-replaceable lithium AAA battery - DUB bottom bracket adds durability and simplicity - Waterproof (IPX7 waterproof to 1 meter for 30 minutes) - Lightweight (less than 40g heavier than standard crankset) - Wide chainline crankset for bikes with the widest gravel tires

At nearly 20% lighter than our (already) lightweight stand collection, the Ultralight takes no performance shortcuts to achieve its feathery 10.6lb (4.8kg) total weight. Despite a slender scale reading it still possess the same durability and stability of our other stands. With the 360° rotating Slide-Lock clamp and a 54? (137cm) wide base with rubber-coated end caps, confidence in the security of your bike is never in question. And when the service day is done, it folds in to a space-saving unit for storage or travel. Look to our Tool Tray and Pro Truing Station upgrades to create the optimal home bike maintenance setup.

Park Tool's 130 Repair Stand Base is designed for the PRS-3, PRS-3OSLB, PRS-3 OS-1, PRS-3 OS-2 and the PRS-23 LB Repair Stands (each sold separately). • 22-1/2" x 22-1/2" x 7/16" (57cm x 57cm by 1.1cm) steel plate • Approximately 68 lbs (31k) • Black painted

Perfect for cross country skiing or snow shoeing, the Ski Kit attaches to the wheel axle with a push button system. The adjustable, lightweight tow bars connect to the trailer side mounts and lead to a padded hip harness. Tow bars connect to the harness where multiple attachment points allow for a perfect fit.

Walk into the service area of any bike shop in the world, and odds are good you'll see a Park Tool Professional Wheel Truing Stand on the bench still the top choice of professional mechanics everywhere for over 40 years, and for good reason. With extra-tall uprights and wide calipers, the TS-2.3 is capable of accepting most wheels commonly found on road, mountain, BMX, and hybrid bicycles, including wheels with disc brakes, aero rims, and oversized MTB tires. Upright adjustment is controlled with an ergonomically-designed speed knob, which quickly adjusts the stand to accommodate any hub width in seconds. The sturdy uprights of the TS-2.3 feature integrated storage for the included thru-axle adapters, which allow for compatibility with thru-axle, quick release, and solid axle hubs without the use of additional parts or adapters. The TS-2.3 is constructed from durable powder-coated heavy-gauge steel and is manufactured, assembled, and calibrated in St. Paul, Minnesota. Strong, comfortable knobs and spring-loaded calipers and caliper arm ensure smooth, consistent operation, and the removable composite caliper tips protect painted rims and fragile materials. 100% adjustable and rebuildable for a lifetime of use. Wheel Capacity: - Maximum wheel size: Up to 29" + with or without tire - Maximum hub width: 200 mm (7.87") - Maximum rim width: 102 mm (4") - Hub compatibility: Accommodates quick release and solid axle hubs, also accommodates thru axle hubs using included TS-2TA.2 Thru Axle Adaptors Mounting Options: - Bolt to benchtop — mounting holes are 9.5 mm (3/8") in diameter and 200 mm (7.9") from center to center - Clamp in vise — base is 76 mm (3") deep - Install in TSB-2.2 Truing Stand Base

The Salsa EXP Series Anything Cradle is a bracket-mount handlebar roll system that holds gear in front of your handlebars without kinking your cables. This modular system is designed around our EXP Series Side-Load Dry Bag, which maintains a fixed height for loading with ease, or you can use your own dry bag. The Anything Cradle allows you to distribute your gear evenly—an essential part of any well-balanced bikepacking setup. - Kit includes Anything Cradle, Side-Load Dry Bag, EXP Series Front Pouch, and two 30" Salsa EXP Series Rubber Straps - EXP Series Anything Cradle Side-Load Dry Bag is fixed-height for easy loading - Salsa EXP Series Rubber Straps are made of non-slip TPU to hold gear securely - Works with or without EXP Series Anything Cradle Front Pouch - Anything Cradle Dry Bags feature a welded seam construction with waterproof materials and hook-and-loop straps for easier installation - Anything Cradle Front Pouch uses water-resistant fabric with welded seams for weather protection - Anything Cradle Arms are compatible with 35.0mm handlebars or 31.8mm handlebars (with included shim) - Nylon 6/6 composite cradle, 6061 forged aluminum arms - Maximum load weight: 8 lbs. (3.6kg)

Being a "shade tree mechanic" doesn't mean you should lean your bike against a tree. You paid hard-earned money for your family's bike collection and we've got a budget-conscious, yet feature-loaded bike repair stand that's perfect for the home bike mechanic. The price-point leading 360-degree rotating clamp can position your bike optimally for any work you're planning. Plus, the Recreational Stand leverages a 52-inch (132cm) wide base with rubber-coated end caps for fantastic stability on any surface. And when the service day is done, it folds into a space-saving unit for storage. Add a Tool Tray, Bottle Opener, and a Pro Truing Stand for the complete at-home bike shop. - Seatpost clamp features Spinner Knob for quick closure and precision clamping pressure - 360-degree rotating clamp design provides easy access to any part of your bicycle - Fixed clamp height at 55-inch (139cm) - Rubber-coated clamp secures and protects expensive components and beautifully painted frames - Clamp opening up to 1.9-inch (4.8cm) accommodates even the largest diameter frame tubes - Powder-coated steel construction is corrosion-resistant and incredibly durable - Stiff 52-inch (132cm) base and rubber-coated end caps create ultimate stability even on uneven surfaces - Total load capacity of 60lbs (27.2kg) accommodates service on most road, mountain bikes, fitness bikes, and electric bikes - Portable and compact construction creates a remarkably small folded footprint of 10 x 4 x 55-inches (25.4 x 10.2 x 139.7cm) - Optional Travel Bag available - At 13.8lbs (6.3kg), moving in and out of storage is no problem - No assembly required - 3-year Warranty

"A full-featured bicycle workstand designed and built for the home mechanic. The PCS-10.3 includes Park Tool's tried and true cam-actuated micro-adjustable clamp design for quick one-handed entry and exit, as well as a quick-release height adjustment lever for easy, secure adjustment. Features 18"" (460 mm) of height adjustment and 360 degrees of clamp rotation, positioning all parts of the bike within reach for any mechanic whether seated or standing. The stand's all-steel construction with teardrop-shaped tubing ensures maximum rigidity and stability, with tubular support braces, a locking support yoke, and upgraded internals for extra dependability. The PCS-10.3 is able to hold up to 80 lbs. (36 kg), which allows for compatibility with virtually all two-wheeled pedal-driven bicycles, including fat bikes and most e-bikes. The PCS-10.3 features an integrated height-adjustable parts tray, as well as accessory ports for the Park Tool #106 Work Tray or PTH-1 Paper Towel Holder (both sold separately), so your tools and small parts are always within reach. Quickly folds down for storage and transport with a smooth-operating leg support system that pulls both legs up in one simple motion. The PCS-10.3 is the perfect way to upgrade your home shop—a stable way to hold nearly any bike off the ground for adjustments, cleaning and repair. NOTE: The maximum weight capacity of the PCS-10.3 assumes the weight is centered below the clamp and between the legs.? - Cam-actuated micro-adjustable clamp fits 7/8"" to 3"" (22 mm–76 mm) diameter tubes and seat posts of any shape and material, including aero posts and dropper posts - Narrow clamping jaws (2.7""/70 mm) fit into tight areas or on short seat posts - Rubber saddle pad allows bikes to be hung by the saddle for quick adjustment or storage - Durable, textured powder coat finish - Integrated height-adjustable parts tray - Height adjustment collar features accessory ports for compatibility with the #106 Work Tray or PTH-1 Paper Towel Holder (both sold separately) - Maximum weight capacity*: 80 lbs. (36 kg) - Height adjustable from 39"" to 57"" (990 mm–1450 mm) using convenient quick-release lever - Base when open forms a triangle of 36"" x 36"" x 48"" (920 mm x 920 mm x 1210 mm) - Folds down to 45"" x 14.5"" (1140 mm x 370 mm) - Weight: 16 lbs. (7.2 kg)"

Made of durable polyester fabric and long known as an ideal pannier for extended tours in any kind of weather, the spacious Bike Packer Classic is now available with the QL2.1 rack mounting system. The advantage of this faithful companion at your rear wheel: greater transport comfort, stability and safety. - Panniers (pair) with classic lid closure for large packing volume - Sides of PS 490 nylon material, front and back of PD 620 - QL2.1 mounting system for racks with max. 16 mm tube diameter - 20 mm hook available as separate accessory (e.g. for E-bikes) - Reduction inserts for tube diameters 8, 10 und 12 mm with anti-scratch function preventing abrasion on the rack - Hooks adjustable without requiring tools - Lower hook rail made of two-component hard-soft synthetic with anti-scratch function protecting the rack - Including integrated inner pocket and shoulder strap - Due to its symmetrical form it is possible to use only one bag on left or right side - The dust flap - with easily operable pull cord - under the lid provides protection e.g. against water, dust and snow - The edge protector prevents contact with spokes and abrasion - Simultaneous use of Ortlieb Travel-Biker possible - Highly reflective 3M Scotchlite reflector - Easy to clean inside

Inspired by Speedcraft's legendary success on cycling's biggest stages, S2 is 100% speed that has been newly refined for everyday sports performance. Our innovative technologies and signature lens have been tuned for riding at any level. S2's laser-etched edging provides the look of a full-frame in a rimless cylindrical shield, for 360-degree visibility and comfort. - Designed in California; made in Italy - High-impact resistant and lightweight polycarbonate lenses - 5.5-base cylindrical shield lens for increased peripheral view and protection - 360 degree visibility for unobstructed views and optimal field of vision - Interchangeable scratch-resistant lenses provide 100% UV protection - Lower air scoops to increase ventilation while reducing moisture on the lens - HYDROILO lens treatment repels water, dirt and oil - Durable, flexible and lightweight TR90 frame - Ultra-grip rubber nose pads and tips for a secure fit no matter how much you sweat - Comes with a hard case, microfiber cleaning bag, alternate fit nose pad and clear replacement lens

SHRED is the high-end performance daypack with an outstanding comfort fit that you bring to your favorite freeride MTB adventures. The pack is equipped with our bounce free No Dancing Monkey 2.0 + Snug-Me harness system and waist support belt that makes it a super smooth biking backpack that will stay put without cramping your style, even when going downhill or on crazy terrain. - Zero bounce with No Dancing Monkey 2.0 + Snug Me-Harness developed and tested with top athletes to give you the perfect fit with no compromises, with absolutely no bounce. - 25L storage to fit all your gear and tools. - NDM Buckle-Technical buckle for a more secure closure and a better fit ZERO BOUNCE ON THE FREERIDE MOUNTAINBIKE TRAILS With its ventilated and multi-size adjustable back panel, it’s very easy to match for an individual fit and performance. Top that with the No Dancing Monkey™ 2.0 + Snug Me harness you’re going to get the best fitting bike backpack with absolutely zero bounce. Sure, we are bragging, but it’s true! Geared up with several smart storage compartments, a helmet carry system and armor attachment points, makes this MTB backpack perfect for your trail or enduro MTB adventure. PACK YOUR GEAR The SHRED 25 has a total storage of 25L for all your essential gear and tools. The front straps have modular solutions if you want to clip on front pockets for your phone or other quick access stuff like gel or energy bars. It has a helmet carry system, some armor carry attachment points, included rain cover and a zippered top panel pocket with soft inner fabric to store your goggles. We even threw in a microfiber cleaner tissue… we thought of everything! Fit up to a 3L/100oz hydration bladder (not included) with the drink tube secured on the shoulder straps. You got a big main zippered organizer pocket with a large and smooth opening and with the outside compressions system you can wrap it all up tightly for a slim balance that doesn’t interfere with your balance or style, important on a mountain bike backpack.