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  Sorry! Trek 2021 Checkpoint SL 6 is no longer available.
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2021 Checkpoint SL 6

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Checkpoint SL 6 is a carbon gravel bike without limits. It's designed to take you places you'd never reach on a standard road bike - like the mud-caked finish line of the world's greatest gravel races. A lightweight OCLV Carbon frame with gravel-smoothing IsoSpeed, a Shimano GRX drive train and extra mounts for gear and accessories make this bike a true gravel powerhouse and a great choice for serious all-road adventurers.

You have big dreams for the likes of Dirty Kanza, Land Run 100 and Trans Iowa, and know you'll need the most dialled gravel bike for these epic adventures. You also love the idea of one bike with such incredible versatility that it excels at gravel racing, adventure road riding, bikepacking and whatever kind of ride you feel like tackling next.

A 500 Series OCLV Carbon frame with Rear IsoSpeed, a Shimano GRX drive train with a wide-range cassette, powerful hydraulic disc brakes, Bontrager Paradigm Comp Disc wheels with 25 mm inner width rims and wide 700x40c gravel tyres that provide extra traction and stability, and a vibration-absorbing handlebar.

A carbon gravel bike built for the longest days, roughest roads and biggest adventures. It's light, fast, comfortable and spec'd with parts that stand up to the most rugged terrain.
- The IsoSpeed decoupler cuts down on fatiguing bumps in gravel so you can wander more, reach new places and stay stronger for longer
- This bike is exceedingly versatile and suited to a wide variety of riding styles, including gravel rides, bikepacking and daily commutes
- Extra mounts on the top tube, seat tube and both sides of the down tube make it easy to carry extra gear and water
- Massive tyre clearance means you can use tyres up to 45 c for extra traction and stability in any conditions
- The horizontal sliding dropout makes it easy to fine-tune your geometry or run singlespeed

Stow it, don't show it
A frame-integrated storage compartment gives you a versatile spot to stow tools and gear.

Frame Size 58, UNI, Carbon, 500 Series OCLV Carbon, IsoSpeed, tapered head tube, Control Freak internal routing, 3S chain keeper, BB90, rack and fender mounts, flat-mount disc, horizontal sliding dropouts, 142x12 mm thru-axle
Wheel Size Front 28
Wheel Size Rear 28
Fork Checkpoint carbon, tapered carbon steerer, rack mounts, mudguard mounts, flat-mount disc, 12x100 mm thru axle
Fork Unknown
Gears DERAILLEUR, Shimano, 1 Gears
Tyres BONTRAGER,
Pedals UNKNOWN,
Wheels BONTRAGER, Bontrager Paradigm Comp 25, Tubeless Ready, 25 mm rim width, 100x12 mm thru axle Bontrager Paradigm Comp 25, Tubeless Ready, 25 mm rim width, Shimano 11/12-speed freehub, 142x12 mm thru axle Bontrager Paradigm Comp 25, Tubeless-Ready, 25 mm rim width Bontrager Paradigm Comp 25, Tubeless Ready, 25 mm rim width, 100x12 mm thru axle Bontrager Paradigm Comp 25, Tubeless Ready, 25 mm rim width, Shimano 11/12-speed freehub, 142x12 thru axle
Kickstand UNKNOWN, Unknown
Front Brake VH, Shimano RX810 hydraulic disc, Rim brake (calliper) with hydraulic actuation
Rear Brake VH, Shimano RX810 hydraulic disc, Rim brake (calliper) with hydraulic actuation
Front Derailleur SHIMANO, Shimano GRX RX810, braze-on
Rear Derailleur ,
Crankset SHIMANO, Shimano GRX RX810, 48/31, 175 mm length
Chain SHIMANO, Shimano Ultegra HG701, 11 speed
Handlebar BONTRAGER, Bontrager Elite IsoZone VR-CF, alloy, 31.8 mm, 93 mm reach, 123 mm drop, 44 cm width
Stem BONTRAGER, Bontrager Pro, 31.8 mm, Blendr-compatible, 7-degree, 100 mm length
Seatpost BONTRAGER
Saddle BONTRAGER, Bontrager Arvada Comp, steel rails, 138 mm width
Front Light UNKNOWN
Rear Light UNKNOWN
Brand Trek
Model Year 2021
Barcodes 601842333327, 601842333334
SKUs / Part Numbers 601601, 601602

Please note: Manufacturers can sometimes change the specification of the products from time to time.

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