Trek Checkmate SLR 9 AXS

Trek

CheckmateSLR 9 AXS

Claimed weightML - 7.55 kg / 16.65 lbs (with TLR sealant, no tubes)Complete bike
Frame800 Series OCLV Carbon, I…Checkmate SLR full carbon,…
GroupsetSRAM RED AXS E1SRAM XG-1391, 10-46T, 13-…
WheelsBontrager Aeolus RSL 37…Bontrager Girona RSL GR, Tu…
Tire clearance45 mm

The Trek Checkmate is the brand's first dedicated gravel race platform, splitting away from the Checkpoint line to serve the pointy end of the competitive field. Built around a lightweight 800-series OCLV carbon frame, it borrows heavily from Trek's aerodynamic road bikes, utilizing similar tube shapes and a fully integrated cockpit to minimize drag. It is a highly specialized tool designed for maximum efficiency on hardpack and smooth dirt. By stripping away heavy cargo features and internal storage, Trek created a stripped-down machine that prioritizes forward momentum and low weight over all-terrain versatility or bikepacking utility.

Trek Checkmate
Build
Size
01 / Buy

Where to get it.

1 retailer · size S.

Size
1 retailer · Size S
02 / Specifications

Spec sheet.

Every component shipped with this build.

01Frameset
3 components
Frame800 Series OCLV Carbon, IsoSpeed, hidden fender mounts, integrated frame bag mounts, RCS Headset System, invisible cable routing, T47, flat mount disc, integrated chainkeeper, removable FD hanger, UDH, 142x12mm chamfered thru axle
ForkCheckmate SLR full carbon, tapered carbon steerer, hidden fender mounts, flat mount disc, 12x100mm thru axle
WeightML - 7.55 kg / 16.65 lbs (with TLR sealant, no tubes)
02Drivetrain & brakes
10 components
Shift leversSRAM RED AXS E1
Bottom bracketSRAM DUB Wide, T47 threaded, internal bearing
Front rotorSRAM Paceline X, rounded, Center Lock, 160mm
Rear rotorSRAM Paceline X, rounded, Center Lock, 160mm
03Wheels & tires
4 components
Front tireBontrager Girona RSL GR, Tubeless Ready, aramid bead, 220 tpi, 700x38mm
Rear tireBontrager Girona RSL GR, Tubeless Ready, aramid bead, 220 tpi, 700x38mm
04Cockpit & contact
4 components
StemTrek Aero RSL Road integrated bar/stem, OCLV Carbon, Race Fit, 80mm reach, 124mm drop (XS: 37cm/40cm, 70mm; S: 39cm/42cm, 80mm; M: 39cm/42cm, 90mm; ML/L: 41cm/44cm, 100mm; XL: 41cm/44cm, 110mm)
HandlebarsTrek Aero RSL Road integrated bar/stem, OCLV Carbon, Race Fit, 80mm reach, 124mm drop (XS: 37cm/40cm; S: 39cm/42cm; M: 39cm/42cm; ML/L: 41cm/44cm; XL: 41cm/44cm)
SaddleAeolus RSL, carbon rails (XS/S: 155mm; M/ML/L/XL: 145mm)
SeatpostKVF aero carbon seatpost, 5mm offset, 280mm length
03 / Geometry

Geometry & fit.

6 sizes published.

The Checkmate introduces Trek's Gravel Race geometry, which pulls the rider into a lower, more aerodynamic posture compared to traditional adventure bikes. The stack is notably reduced, encouraging an aggressive tuck that closely mirrors a road racing position. Handling is shaped by a low bottom bracket drop, which keeps the rider's center of gravity close to the ground for stability during high-speed efforts.

The front end relies on the integrated Aero RSL bar and stem. This one-piece carbon cockpit features hoods that are narrower than the drops, forcing a tucked aerodynamic stance on the flats while offering a flared position for descending control. While the short chainstays keep the rear wheel tucked in for quick directional changes, the overall handling leans toward straight-line speed rather than nimble low-speed technical maneuvering. The low bottom bracket also requires riders to be mindful of pedal strikes on uneven terrain.

Reach × Stack · size Smm

Where the handlebar sits relative to the bottom bracket — the single most important fit pair.

650606563519475STACK ↑335358380403425REACH →ENDURANCEFAST / LOWSize S385 · 540
01Fit geometry6 values
Stack540 mm
Reach385 mm
Top tube540 mm
Headtube length106 mm
Standover height747 mm
Seat tube length414 mm
02Component geometry7 values
Crank length165 mm
Handlebar width420 mm
Stem length80 mm
Saddle width155 mm
Seatpost offset5 mm
Handlebar reach80 mm
Handlebar drop124 mm
03Handling geometry7 values
Headtube angle71.3°
Seat tube angle73.9°
BB drop80 mm
Trail70 mm
Offset49 mm
Wheelbase1011 mm
Chainstay length426 mm

Which size should I buy?

Slide your height to see the recommended size. GearWise's fit algorithm works from the published stack, reach, and ETT — the brand's own recommendation may differ.

Your height
5'8"173 cm
5'0"5'5"5'10"6'3"6'7"
Recommended sizeSBased on stack, reach & ETT for your height · score 51/100.

Calculated from GearWise's own stack / reach / ETT algorithm — the brand's size chart may recommend a different size, and a proper bike fit beats any calculator.

04 / Other builds

The lineup.

2 builds, ranging $8,200 – $12,000.

The Checkmate lineup is strictly premium, offering only two high-end carbon builds centered around SRAM's wireless 1x drivetrains. Both models share the exact same frameset and integrated cockpit, and both include dual-sided power meters and carbon wheels, cementing the bike's race-day intentions.

The entry point is the SLR 7 AXS, equipped with a 12-speed SRAM Force XPLR groupset and Bontrager Aeolus Pro 3V wheels. Stepping up to the flagship SLR 9 AXS introduces the 13-speed SRAM Red XPLR drivetrain and upgrades the rolling stock to the lighter Aeolus RSL 37V wheelset. The SLR 9 ships with fast-rolling 38mm tires, while the SLR 7 comes with slightly wider 42mm rubber. The frame clears up to 45mm across all builds. The lack of mid-tier or mechanical options keeps the price floor high, positioning the Checkmate exclusively for dedicated racers willing to invest in top-tier aerodynamic and weight savings.

01
SLR 9 AXS build
· Currently viewingSLR 9 AXS
$12,000On this page
02
SLR 7 AXS build
SLR 7 AXS
$8,200
05 / Reviews

From the press.

13 reviews from the cycling press.

Reviewers consistently note the Checkmate's road-racing DNA, highlighting its rapid acceleration and efficiency on smooth surfaces. The bike excels on hardpack and pavement, where testers praise the "zippiness on sealed roads" (Nzcyclingjournal). The rear IsoSpeed decoupler earns high marks for maintaining traction and comfort, allowing riders to stay seated for a "smooth power transfer" (Nzcyclingjournal) over washboard sections.

However, testers point out a distinct imbalance in compliance between the front and rear. The integrated carbon cockpit is highly aerodynamic but transmits significant feedback, with one reviewer noting it feels "bordering on unforgiving" (BikeRadar) on rougher impacts. When the terrain transitions from champagne gravel to chunky rocks or technical singletrack, the stiff frame and narrow stock tires can produce "a bit of a jittery feeling" (Nzcyclingjournal). Pushed hard into loose corners, the geometry's focus on straight-line speed can occasionally result in "overrunning turns and fishtailing" (Velo). Ultimately, critics agree the bike is a specialized racing tool that trades plush, go-anywhere capability for uncompromising speed.

06 / Compared to

Compared to.

Most-viewed comparisons.