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

BMC Roadmachine Four 2021


c

Geometry

  47 51 54 56 58 61
To view geometry data you must use a web browser that supports JavaScript. See: browser-update.org
Add to Compare
Reach 431 352 380 442 347 437
Stack 600 493 618 640 513 765
Top Tube (effective) 583 487 441 538 584 659
Seat Tube C-T 362 423 504 448 586 600
Head Angle 83 74 75 67 76 68
Seat Angle 80 71 61 68 62 68
Head Tube 103 112 141 201 193 220
Chainstay 445 424 346 417 471 332
Wheelbase 814 997 1066 1160 1169 901
Front Centre 690 712 542 619 666 612
BB Drop 57 78 71 57 74 58
Fork Rake / Offset 47 57 53 47 38 37
Trail 53 67 54 54 73 74
Fork Length (A2C) 413 385 332 437 378 449
Tyre Max Width 409 349 443 384 342 451
Seatpost Length 282 332 434 334 320 441
Seatpost Offset 17 14 12 12 13 16
Stem Length 90 90 111 93 116 116
Stem Angle ±8 ±8 ±8 ±8 ±8 ±8
Crank Length 196 141 139 147 160 175
Rider Height <166 166-174 172-180 178-186 184-192 >190
HB Drop 124 118 121 132 134 118
HB Reach 74 72 56 77 83 59
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.

Image showing geometry measurements

Also! Search by Stack and Reach

You can now search the database by numbers.

Find bikes that match your geometry criteria.