2021 Trek Checkpoint SL 5

Checkpoint SL 5 is a carbon gravel bike made for epic all-road adventures. It's built with a Shimano GRX drivetrain and hydraulic disc brakes, but the defining feature of this model is the lightweight OCLV Carbon frame with IsoSpeed, a decoupler at the top tube/seat tube junction that provides additional compliance over rough terrain so you can stay stronger longer.

Specifications

Frameset

Frame

500 Series OCLV Carbon, IsoSpeed, tapered head tube, Control Freak internal routing, 3S chain keeper, rack and mudguard mounts, flat-mount disc, Stranglehold dropouts, 142x12 mm thru axle

Fork

Checkpoint carbon, tapered carbon steerer, rack mounts, mudguard mounts, flat-mount disc, 12x100 mm thru axle

Wheels

Front hub

Bontrager alloy, sealed bearing, CenterLock disc, 100x12 mm thru axle

Rear hub

Bontrager alloy, sealed bearing, CenterLock disc, Shimano 11-speed freehub, 142x12 mm thru axle

Rim

Bontrager Tubeless Ready, 28-hole, 17 mm width, Presta valve

Spokes

14 g stainless steel, black

Tire

Bontrager GR1 Team Issue, Tubeless Ready, Inner Strength casing, aramid bead, 120 tpi, 700x40 c

Drivetrain

Shifter

Shimano GRX RX600, 11-speed

Front derailleur

Shimano GRX RX810, braze-on

Rear derailleur

Shimano GRX RX810, long cage, 34T max cog

*Crank

Size: 49
Shimano GRX RX600, 46/30, 165 mm length

Size: 52
Shimano GRX RX600, 46/30, 170 mm length

Size: 54, 56
Shimano GRX RX600, 46/30, 172.5 mm length

Size: 58, 61
Shimano GRX RX600, 46/30, 175 mm length

Bottom bracket

Trek BB90

Cassette

Shimano 105 HG700-11, 11-34, 11-speed

Chain

Shimano 105 HG601, 11-speed

Components

Saddle

Bontrager Montrose Comp, steel rails, 138 mm width

*Seatpost

Size: 49, 52, 54, 56
Bontrager alloy seat mast cap, 10 mm offset, short length

Size: 58, 61
Bontrager alloy seat mast cap, 10 mm offset, tall length

*Handlebar

Size: 49
Bontrager Elite IsoZone VR-CF, alloy, 31.8 mm, 93 mm reach, 123 mm drop, 38 cm width

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: 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: 49
Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 80 mm length

Size: 52, 54
Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 90 mm length

Size: 56, 58
Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 100 mm length

Size: 61
Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 110 mm length

Headset

FSA Integrated, sealed cartridge bearing, 1-1/8" top, 1.5" bottom

*Brake

Size: 49, 52, 54, 56, 58, 61
Shimano GRX RX810, 11 speed

Size: 49, 52, 54, 56, 58, 61
Shimano GRX hydraulic disc, flat mount

Brake rotor

Shimano SM-RT70, 160mm, centerlock

Weight

Weight

9.72 kg / 21.43 lbs