2019 Jamis COMMUTER 3 STEP-OVER

Modest component level aluminum frame commuter bike

View on jamisbikes.com

2019 Jamis COMMUTER 3 STEP-OVER
  • MSRP $699
  • Suspension Rigid
  • Frame Aluminum
  • Fork Aluminum
  • Wheels 700c Aluminum
  • Drivetrain 2 × 8
  • Groupset 
    Shimano Claris
Gearing

2 × 8 — 16 speed

2019 Jamis COMMUTER 3 STEP-OVER
34 mph
Similar Bikes
31 mph

The 2019 COMMUTER 3 STEP-OVER is easier to ride up hills than similar bikes.

Similar bikes won‘t keep up with the 2019 COMMUTER 3 STEP-OVER while riding downhill or sprinting.

Geometry

Oh snap! This frame was drawn from the actual bike geometry measurements. Roll over the table below to highlight frame dimensions.

Size
Stack 570584
Reach 403404
Stack/Reach Ratio1.411.45
Top Tube Length 561571
Seat Tube Length 356457
Seat Tube Angle74.574.0
Head Tube Length 120130
Head Tube Angle70.071.0
BB Drop 7070
Front Center 642637
Chainstay Length 445445
Wheelbase 1,0781,073
Rake 5050
Standover Height 643659
🐐 Measurements listed in millimeters and degrees
Build
Frame6061 triple gauge aluminum main tubes and stays, new sloping design, kickstand mount, forged dropouts and fender/rack eyelets
ForkJamis City/Cross alloy unicrown, straight blades, forged dropouts with low rider mounts and double fender eyelets
HeadsetWater-resistant sealed mechanism, threaded 1 1/8”
StemJamis alloy hi-rise, quill type, 35˚ x 90mm with 180mm quill
HandlebarJamis ARC, 6061 aluminum, 25.4 x 35˚ sweep x 580mm (F 14", 18") 600mm (M 15”, 17”, 19”, 21”, 23”)
SaddleJamis Metro Sport with memory foam, synthetic leather cover, burnished sides, gender specific
SeatpostJamis alloy micro-adjust, 27.2 x 350mm with alloy clamp and QR seatpin
PedalsComfort platform with TPE non-slip insert
GripsAnatomic double density kraton with reflective end plug
Components
Front DerailleurShimano Claris FD-R2000
Rear DerailleurShimano Claris RD-R2000 GS
ShiftersShimano Claris SL-R2000, 16-speed
CrankForged alloy crank, 48/36, 170mm (14-18”), 175mm (19-23”), with outter guard
CassetteShimano HG31, 8-speed, 11-32T
ChainKMC Z7
BrakesTektro HD-M275 post mount hydraulic disc brakes with 160mm 6-bolt rotors and Tektro levers
Wheels
RimsAlex ID-19 double wall alloy rims, 32H, alloy hubs with QR and 14g stainless steel spokes
TiresCST Corporal with puncture protection and silver safety stripe, 700 x 38c
Similar Bikes
2019 Jamis COMMUTER 3 STEP-OVER