1. Home
  2. BMC
  3. Roadmachine Four
  4. 2021

BMC Roadmachine Four 2021


c

Geometry

Compare 1
 
Add to Compare
Reach
Stack
Top Tube (effective)
Seat Tube C-T
Head Angle
Seat Angle
Head Tube
Chainstay
Wheelbase
Front Centre
BB Drop
Fork Rake / Offset
Trail
Fork Length (A2C)
Tyre Max Width
Seatpost Length
Seatpost Offset
Stem Length
Stem Angle
Crank Length
Rider Height
HB Drop
HB Reach
Data Source
  47 51 54 56 58 61
Add to Compare
Reach 448 324 361 357 469 435
Stack 478 499 469 663 676 614
Top Tube (effective) 551 601 570 505 551 490
Seat Tube C-T 416 423 464 494 580 477
Head Angle 69 75 74 60 57 82
Seat Angle 86 73 74 70 59 64
Head Tube 101 153 144 209 229 281
Chainstay 392 416 361 365 415 396
Wheelbase 963 1147 855 1173 1054 1095
Front Centre 537 675 689 566 641 546
BB Drop 70 67 76 81 60 84
Fork Rake / Offset 51 47 45 39 37 53
Trail 74 50 71 74 50 59
Fork Length (A2C) 359 361 325 328 427 327
Tyre Max Width 448 500 466 417 415 394
Seatpost Length 275 316 401 438 371 496
Seatpost Offset 16 12 14 13 14 15
Stem Length 86 75 85 95 94 128
Stem Angle ±8 ±8 ±8 ±8 ±8 ±8
Crank Length 159 195 142 194 158 191
Rider Height <166 166-174 172-180 178-186 184-192 >190
HB Drop 122 131 111 111 109 148
HB Reach 77 57 76 77 61 67
Data Source Manufacturer Manufacturer Manufacturer Manufacturer Manufacturer Manufacturer

Standard measurements are in millimeters and degrees. The site attempts to recognize and convert other units back to standard - results may vary.

Problem?  Flag for Review or

RideWrap Protect your bike!

There is a Tailored Protection™ kit available for this bike.

Also! Search by Stack and Reach

You can now search the database by numbers.

Find bikes that match your geometry criteria.