DESCRIPTION

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

We reserve the right to make changes to the product information contained on this site at any time without notice, including with respect to equipment, specifications, models, colors, and materials.

*spec applies to all sizes unless otherwise noted

Frameset

Frame	500 Series OCLV Carbon, IsoSpeed, tapered head tube, Control Freak internal routing, 3S chain keeper, rack and fender mounts, flat-mount disc, horizontal sliding dropouts, 142x12 mm thru-axle
Fork	Checkpoint carbon, tapered carbon steerer, rack mounts, mudguard mounts, flat-mount disc, 12x100 mm thru axle
Frame fit	Gravel

Wheels

Wheel front	Bontrager Paradigm Comp 25, Tubeless Ready, 25 mm rim width, 100x12 mm thru axle
Wheel rear	Bontrager Paradigm Comp 25, Tubeless Ready, 25 mm rim width, Shimano 11-speed freehub, 142x12 thru axle
Skewer front	Bontrager Switch thru axle, removable lever
Spokes	NA
Tyre	Bontrager GR1 Team Issue, Tubeless Ready, Inner Strength casing, aramid bead, 120 tpi, 700x40 c
Max tyre size	45c Bontrager tyres (49 & 52cm: 40c due to toe overlap), with at least 4mm of clearance to frame

Drivetrain

Front derailleur	Shimano GRX RX810, braze-on
Rear derailleur	Shimano GRX RX810, long cage, 34T max cog
*Crank	Size: 49, 52 Shimano GRX RX810, 48/31, 170 mm length
	Size: 54, 56 Shimano GRX RX810, 48/31, 172.5 mm length
	Size: 58, 61 Shimano GRX RX810, 48/31, 175 mm length
Cassette	Shimano Ultegra HG800-11, 11-34, 11-speed
Chain	Shimano Ultegra HG701, 11-speed

Components

Saddle	Bontrager Arvada Comp, steel rails, 138 mm width
*Seatpost	Size: 49, 52, 54, 56 Bontrager carbon seat mast cap, 20 mm offset, short length
*Seatpost	Size: 58, 61 Bontrager carbon seat mast cap, 20 mm offset, tall length
*Handlebar	Size: 52 Bontrager Elite IsoZone VR-CF, alloy, 31.8 mm, 93 mm reach, 123 mm drop, 40 cm width
	Size: 54, 56 Bontrager Elite IsoZone VR-CF, alloy, 31.8 mm, 93 mm reach, 123 mm drop, 42 cm width
	Size: 49 Bontrager Elite IsoZone VR-CF, alloy, 31.8 mm, 93 mm reach, 123 mm drop, 38 cm width
	Size: 58, 61 Bontrager Elite IsoZone VR-CF, alloy, 31.8 mm, 93 mm reach, 123 mm drop, 44 cm width
Handlebar tape	Bontrager Supertack Perf tape
*Stem	Size: 52, 54 Bontrager Pro, 31.8 mm, Blendr-compatible, 7-degree, 90 mm length
	Size: 56, 58 Bontrager Pro, 31.8 mm, Blendr-compatible, 7-degree, 100 mm length
	Size: 49 Bontrager Pro, 31.8 mm, Blendr-compatible, 7-degree, 80 mm length
	Size: 61 Bontrager Pro, 31.8 mm, Blendr-compatible, 7-degree, 110 mm length
Head set	FSA Integrated, sealed cartridge bearing, 1-1/8" top, 1.5" bottom
Brake	Shimano RX810 hydraulic disc

Weight

Weight	56 - 9.11 kg / 20.08 lbs
Weight limit	This bike has a maximum total weight limit (combined weight of bicycle, rider and cargo) of 125 kg (275 lb).

2021 TREK Checkpoint SL 6

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