Brand: TREK
Reference: 5319575
Trek's 2025 Checkmate SLR 9 AXS bike is our fastest, lightest gravel race bike, designed to chase podiums on the most demanding roads. It combines a lightweight aerodynamic design with IsoSpeed technology, which smoothes the road, and the new Gravel Race geometry, which allows you to increase the pace without depleting your energy. To keep you at the front of the pack, it's equipped with high-end components such as carbon wheels and the new SRAM RED AXS XPLR wireless drivetrain.
It is ideal for you if...
You're looking for a bike that's ready to compete on the most epic gravel adventures. You need a bike that is aerodynamic and light, but not at the cost of your comfort. You know that the best components are often what separates the best from the rest and you look to carbon wheels and SRAM's new RED XPLR AXS wireless electronic drivetrain to stay ahead.
Features
Buscas is a gravel bike designed to fly off the starting line, with Full System Foil aerodynamic tubes and an aerodynamic and ergonomic single handlebar and stem system part.
Comfort is not left aside thanks to IsoSpeed technology, which smoothes the road, and the wheel arch up to 45 mm wide (depending on measurements).
The new Gravel Race geometry protects you from the wind and allows you to attack without compromising the fit you need to travel long distances with maximum comfort.
Our lightest gravel bike yet, with premium 800 Series OCLV carbon to save energy and reduce road vibrations.
It is equipped with multiple supports to install Adventure bags and transport everything you need for race day.
Frame assembly
800 Series OCLV Carbon Frame, IsoSpeed, hidden fender mounts, integrated frame bag mounts, invisible cable routing, 47T, flat mount disc, integrated chain guard, removable derailleur hanger, UDH, beveled thru axle 142x12mm
Checkmate SLR carbon fork, tapered carbon steerer, hidden fender mounts, flat mount disc, 12x100mm thru-axle
Weight
ML Weight - 7.55 kg / 16.65 lbs (with TLR sealant, without tubes)
Weight limit This bicycle has a maximum weight limit (combined weight of bicycle, rider and load) of 125 kg.
Electrical system
Battery SRAM eTap battery pack (with charger)
Transmission
SRAM RED AXS E1 shift lever
SRAM RED XPLR eTap AXS rear derailleur, max. 46T
*Peddalier
Size: XS, S
SRAM RED XPLR with potentiometer, 42T, DUB wide, 165 mm length
Size: M
SRAM RED XPLR with potentiometer, 42T, DUB wide, 170 mm length
Size: ML, L
SRAM RED XPLR with potentiometer, 42T, DUB wide, length 172.5 mm
Size: XL
SRAM RED XPLR with potentiometer, 42T, DUB wide, 175 mm length
SRAM DUB bottom bracket, T47 threaded, internal bearing
SRAM XG-1391 cassette, 10-46, 13 speeds
SRAM RED E1 chain, 12 speeds
Maximum plate size See the maintenance manual
Wheels
Bontrager Aeolus RSL 37V front wheel, OCLV carbon, Tubeless Ready, 37 mm rim profile, 100x12 mm thru axle
Bontrager Aeolus RSL 37V rear wheel, OCLV carbon, Tubeless Ready, 37 mm rim profile, 142x12 mm thru axle
Front closure Bontrager Switch beveled thru axle, removable lever
Rear closure Bontrager Switch beveled thru-axle, removable lever
Bontrager Girona RSL GR tire, Tubeless Ready, aramid rim, 220 tpi, 700x38 mm
Bontrager TLR Sealant Cover Piece, 6oz
Bontrager TLR rim tape
Max. size. deck length 45 mm without fenders
Components
*Saddle
Size: XS, S
Aeolus RSL, carbon rails, 155 mm width
Size: M, ML, L, XL
Aeolus RSL, carbon rails, 145 mm width
*Seatpost
Size: XS, S, M
KVF aero carbon seatpost, 5 mm setback, length 280 mm
Size: ML, L, XL
KVF aero carbon seatpost, 5 mm setback, length 320 mm
*Handlebar/stem (integrated)
Size: XS
Trek Aero RSL Road Integrated Handlebar/Stem, OCLV Carbon, Race Fit, 80mm Reach, 124mm Drop, 37cm Lever Width, 40cm Handlebar End Width, stem length 70mm
Size: S
Trek Aero RSL Road Integrated Handlebar/Stem, OCLV Carbon, Race Fit, 80mm Reach, 124mm Drop, 39cm Lever Width, 42cm Handlebar End Width, stem length 80mm
Size: M
Trek Aero RSL Road Integrated Handlebar/Stem, OCLV Carbon, Race Fit, 80mm Reach, 124mm Drop, 39cm Lever Width, 42cm Handlebar End Width, stem length 90mm
Size: ML, L
Trek Aero RSL Road Integrated Handlebar/Stem, OCLV Carbon, Race Fit, 80mm Reach, 124mm Drop, 41cm Lever Width, 44cm Handlebar End Width, stem length 100mm
Size: XL
Trek Aero RSL Road Integrated Handlebar/Stem, OCLV Carbon, Race Fit, 80mm Reach, 124mm Drop, 41cm Lever Width, 44cm Handlebar End Width, stem length 110mm
SRAM Paceline X brake disc, rounded, centerlock, 160 mm
Disc size Maximum brake disc sizes: 180 mm front and rear