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 401 363 400 378 440 476
Stack 552 636 471 673 601 735
Top Tube (effective) 565 512 619 551 640 492
Seat Tube C-T 492 539 544 603 548 577
Head Angle 76 80 80 72 59 58
Seat Angle 73 77 67 77 70 84
Head Tube 130 145 127 172 239 240
Chainstay 334 479 479 401 386 442
Wheelbase 1142 806 936 985 1136 1141
Front Centre 658 577 643 533 670 561
BB Drop 84 65 63 66 71 69
Fork Rake / Offset 53 40 53 36 40 40
Trail 63 55 59 53 70 68
Fork Length (A2C) 340 335 420 389 306 345
Tyre Max Width 384 479 369 475 487 403
Seatpost Length 307 397 401 313 312 465
Seatpost Offset 14 15 13 13 13 15
Stem Length 92 101 93 102 121 136
Stem Angle ±8 ±8 ±8 ±8 ±8 ±8
Crank Length 192 163 176 156 190 200
Rider Height <166 166-174 172-180 178-186 184-192 >190
HB Drop 116 134 109 143 141 130
HB Reach 77 78 82 71 70 56
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.