Trek Checkpoint SL 6 Bike
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 drivetrain, and extra mounts for gear and accessories make this bike a true gravel powerhouse and a great choice for serious all-road adventurers.
Specifications
*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, 142x12mm thru axle |
|---|---|
| Fork | Checkpoint carbon, tapered carbon steerer, rack mounts, fender mounts, flat mount disc, 12x100mm thru axle |
| Frame fit | Gravel |
Wheels
| Wheel front | Bontrager Paradigm Comp 25, Tubeless Ready, 25mm rim width, 100x12mm thru axle |
|---|---|
| Wheel rear | Bontrager Paradigm Comp 25, Tubeless Ready, 25mm rim width, Shimano 11-speed freehub, 142×12 thru axle |
| Skewer front | Bontrager Switch thru axle, removable lever |
| Skewer rear | Bontrager Switch thru axle, removable lever |
| Tire | Bontrager GR1 Team Issue, Tubeless Ready, Inner Strength casing, aramid bead, 120 tpi, 700x40c |
| Max tire size | 45c Bontrager tires (49 & 52cm: 40c due to toe overlap), with at least 4mm of clearance to frame |
Drivetrain
| Shifter | Shimano GRX RX810, 11 speed |
|---|---|
| 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, 170mm length |
| Size: 54, 56 Shimano GRX RX810, 48/31, 172.5mm length |
|
| Size: 58, 61 Shimano GRX RX810, 48/31, 175mm length |
|
| Bottom bracket | Trek BB90 |
| Cassette | Shimano Ultegra HG800-11, 11-34, 11 speed |
| Chain | Shimano Ultegra HG701, 11-speed |
Components
| Saddle | Bontrager Arvada Comp, steel rails, 138mm width |
|---|---|
| *Seatpost | Size: 49, 52, 54, 56 Bontrager carbon seatmast cap, 20mm offset, short length |
| Size: 58, 61 Bontrager carbon seatmast cap, 20mm offset, tall length |
|
| *Handlebar | Size: 52 Bontrager Elite IsoZone VR-CF, alloy, 31.8mm, 93mm reach, 123mm drop, 40cm width |
| Size: 54, 56 Bontrager Elite IsoZone VR-CF, alloy, 31.8mm, 93mm reach, 123mm drop, 42cm width |
|
| Size: 49 Bontrager Elite IsoZone VR-CF, alloy, 31.8mm, 93mm reach, 123mm drop, 38cm width |
|
| Size: 58, 61 Bontrager Elite IsoZone VR-CF, alloy, 31.8mm, 93mm reach, 123mm drop, 44cm width |
|
| Handlebar tape | Bontrager Supertack Perf tape |
| *Stem | Size: 52, 54 Bontrager Pro, 31.8mm, Blendr compatible, 7 degree, 90mm length |
| Size: 56, 58 Bontrager Pro, 31.8mm, Blendr compatible, 7 degree, 100mm length |
|
| Size: 49 Bontrager Pro, 31.8mm, Blendr compatible, 7 degree, 80mm length |
|
| Size: 61 Bontrager Pro, 31.8mm, Blendr compatible, 7 degree, 110mm length |
|
| Headset | FSA Integrated, sealed cartridge bearing, 1-1/8” top, 1.5” bottom |
| Brake | Shimano RX810 hydraulic disc, flat mount |
| Brake rotor | Shimano RT800, centerlock, 160mm |
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 275 pounds (125 kg). |
Sizing & fit
The charts below show our recommended sizes based on height, but there are some other factors, like arm and leg length, that determine a great fit. That’s why you’ll see some overlap in our recommendations. Not every rider who’s 5´8˝, for example, will fit on the same size bike. The best way to find your perfect fit is to consult the experts at your local retailer.
Rider Height
Inseam
49
156.0 – 162.0 cm
5’1.4″ – 5’3.8″
74.0 – 77.0 cm
29.1″ – 30.3″
52
163.0 – 168.0 cm
5’4.2″ – 5’6.1″
76.0 – 79.0 cm
29.9″ – 31.1″
54
168.0 – 174.0 cm
5’6.1″ – 5’8.5″
78.0 – 82.0 cm
30.7″ – 32.3″
56
174.0 – 180.0 cm
5’8.5″ – 5’10.9″
81.0 – 85.0 cm
31.9″ – 33.5″
58
180.0 – 185.0 cm
5’10.9″ – 6’0.8″
84.0 – 87.0 cm
33.1″ – 34.3″
61
185.0 – 191.0 cm
6’0.8″ – 6’3.2″
86.0 – 90.0 cm
33.9″ – 35.4″
All measurements provided in cm unless otherwise noted.
| Frame size number | Wheel size | A — Seat tube | B — Seat tube angle | C — Head tube length | D — Head angle | E — Effective top tube | G — Bottom bracket drop | H — Chainstay length | I — Offset | J — Trail | K — Wheelbase | L — Standover | M — Frame reach | N — Frame stack | Saddle rail height min (w/short mast) | Saddle rail height max (w/short mast) | Saddle rail height min (w/tall mast) | Saddle rail height max (w/tall mast) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 49 cm | 700c | 49.0 | 75.0° | 9.0 | 71.4° | 51.5 | 7.8 | 42.5 | 4.9 | 6.6 | 99.5 | 72.3 | 37.3 | 53.2 | 57.5 | 63.5 | 60.5 | 66.5 |
| 52 cm | 700c | 52.0 | 74.0° | 10.7 | 71.6° | 53.6 | 7.8 | 42.5 | 4.9 | 6.5 | 100.5 | 74.9 | 37.9 | 54.9 | 61.0 | 67.0 | 64.0 | 70.0 |
| 54 cm | 700c | 54.0 | 73.5° | 12.6 | 71.8° | 55.1 | 7.6 | 42.5 | 4.9 | 6.4 | 101.4 | 77.5 | 38.3 | 56.7 | 64.0 | 70.0 | 67.0 | 73.0 |
| 56 cm | 700c | 56.0 | 73.0° | 14.5 | 72.2° | 56.6 | 7.6 | 42.5 | 4.9 | 6.1 | 102.0 | 79.5 | 38.7 | 58.6 | 67.0 | 73.0 | 70.0 | 76.0 |
| 58 cm | 700c | 58.0 | 73.0° | 17.1 | 72.3° | 57.7 | 7.4 | 42.5 | 4.9 | 6.1 | 103.2 | 81.7 | 39.1 | 60.9 | 69.0 | 75.0 | 72.0 | 78.0 |
| 61 cm | 700c | 61.0 | 73.0° | 20.0 | 72.6° | 59.2 | 7.4 | 42.5 | 4.9 | 5.9 | 104.4 | 84.6 | 39.7 | 63.8 | 72.0 | 78.0 | 75.0 | 81.0 |
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