Mason Definition 2015

Please login now to see the numbers

We ask that you login after viewing so many bikes, to protect our data from thieving robots.

It's totally free - no password - no catch.

Geometry

Select two bikes to compare.
Any bike, any page.

  50CM 52CM 54CM 56CM 58CM 60CM
Compare
Reach 372 450 418 437 438 387
Stack 630 562 589 493 510 539
Top Tube (effective) 547 501 540 496 513 646
Top Tube (actual) 535 521 532 615 556 609
Seat Tube C-T 551 483 535 555 503 630
Seat Tube C-C 533 431 495 462 487 455
Head Angle 68 59 58 83 83 70
Seat Angle 75 80 85 73 71 61
Head Tube 143 122 156 145 198 167
Chainstay 488 369 421 357 446 461
Wheelbase 961 1158 1075 858 1195 864
Front Centre 679 586 517 489 704 497
Standover 883 904 661 925 925 957
BB Drop 66 73 76 65 58 80
Fork Rake / Offset 46 42 36 40 52 46
Trail 61 76 54 76 57 57
Fork Length (A2C) 334 400 309 380 409 433
Axle Spacing 113 129 110 148 113 127
Handlebar Width 35 39 46 38 47 50
Stem Length 80 86 118 127 107 128
Crank Length 149 152 169 179 173 197
Data Source Manufacturer Manufacturer Manufacturer Manufacturer Manufacturer Manufacturer

Measurements are in millimeters and degrees.

New Advanced Search

You can now search the database by numbers.

Find bikes that match your geometry criteria.

If you like the site, can we ask a favor?

Click now, buy soon, and we'll get a few cents.

Jenson USA - Competitive Cyclist

Thank you! Bob & Dave