Bike details
Overview
Key information split into simple groups.
Bike summary
-
-
Frame Steel -
Groupset GRX 800, GRX 600 -
Suspension Rigid -
Drivetrain 2 × 11 -
Brakes Hydraulic Disc
Sizing
Recommended size guide.
XS
156cm - 166cm
SM
163cm - 174cm
MD
171cm - 182cm
LG
179cm - 189cm
XL
185cm - 195cm
Parts list
Components
Main components, grouped by system.
Bike components
Frame
Frame
Columbus Cromor double butted, TA, rack / fender mounts, internal light cable routing, rear light mount, 86.5 mm T47 BB shell
Suspension Fork
Full carbon, TA, 1.1/2'' - 1.1/8'', with fender / cage mounts
Drivetrain
Rear Derailleur
Shimano GRX RD-RX810, clutch
Front Derailleur
Shimano GRX FD-RX810-F
Shift Levers
Shimano GRX ST-RX600 STI 2 x 11
Cassette
Shimano 105 CS-HG70011 11-speed, 11 - 34 T
Crank
Bombtrack Lyer forged aluminium crank, direct mount interface, (SRAM compatible),30 mm spindle
Bottom Bracket
Bombtrack T47 internal sealed BB for 30 mm spindle
Chain
KMC X11 EPT Anti Rust chain, 1/2'' x 11/128'', 114L
Pedals
-
Wheels
Front Hub
Bombtrack Tau sealed hub, 6-bolt disc
Rear Hub
Bombtrack Tau sealed hub, 11-speed, 6-bolt disc
Rims
WTB ST i25 double wall, TCS 2.0, 32h
Tires
Front: WTB BYWAY TCS 650B x 47C, tubeless ready, Rear: WTB Horizon TCS 650B x 47C, tubeless ready
Brakes
Brakes
Shimano GRX BR-RX400 hydraulic disc brakes
Cockpit
Stem
Ritchey Comp 4-Axis 44 forged aluminium stem, -6°
Handlebar
Ritchey Road Comp Streem III drop bar, 31.8 mm, 5° backsweep
Grips
Bombtrack Command bar tape
Headset
Sealed external aheadset, 1.1/2'' - 1.1/8''
Seat
Saddle
Bombtrack Dart saddle
Seatpost
Ritchey Comp aluminium seatpost 27.2 mm x 400 mm
Fit data
Geometry
Numbers for sizing and ride feel.
| Size | XS | SM | MD | LG | XL |
|---|---|---|---|---|---|
| Stack Reach Ratio | 1.479 mm | 1.483 mm | 1.491 mm | 1.49 mm | 1.493 mm |
| Front Center | 577 mm | 595 mm | 607 mm | 626 mm | 643 mm |
| Rake | 53 mm | 53 mm | 53 mm | 53 mm | 53 mm |
| Trail | 59 mm | 59 mm | 56 mm | 56 mm | 56 mm |
| Stack | 534 mm | 553 mm | 571 mm | 590 mm | 609 mm |
| Reach | 361 mm | 373 mm | 383 mm | 396 mm | 408 mm |
| Top Tube Length | 509 mm | 526 mm | 547 mm | 565 mm | 588 mm |
| Seat Tube Angle | 74.5 ° | 74.5 ° | 74 ° | 74 ° | 73.5 ° |
| Seat Tube Length | 470 mm | 490 mm | 520 mm | 550 mm | 580 mm |
| Head Tube Angle | 71.5 ° | 71.5 ° | 72 ° | 72 ° | 72 ° |
| Head Tube Length | 110 mm | 130 mm | 150 mm | 170 mm | 190 mm |
| Chainstay Length | 420 mm | 420 mm | 420 mm | 420 mm | 420 mm |
| Wheelbase | 987 mm | 1005 mm | 1018 mm | 1037 mm | 1055 mm |
| Bottom Bracket Drop | 68 mm | 68 mm | 68 mm | 65 mm | 65 mm |
| Standover Height | 746 mm | 765 mm | 794 mm | 818 mm | 841 mm |
| Wheels | 650 | 650 | 650 | 650 | 650 |
| Rider Min Height | 156 cm | 163 cm | 171 cm | 179 cm | 185 cm |
| Rider Max Height | 166 cm | 174 cm | 182 cm | 189 cm | 195 cm |