Marin Alcatraz 2019

No image available.

Please login now to unscramble the numbers

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

The data shown below is now total nonsense.

You need to login to continue.

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


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

  One Size
Reach 439
Stack 643
Top Tube (effective) 517
Top Tube (actual) 634
Seat Tube C-T 356
Head Angle 65
Seat Angle 85
Head Tube 122
Chainstay 436
Wheelbase 945
Standover 687
BB Height 373
Axle Spacing 158
Wheel Size 28
Data Source Manufacturer

Measurements are in millimeters and degrees, unless otherwise noted.

Problem? Edit Bike - Edit Geometry

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

Like this project? Subscribe for occasional emails about new things. No Spam. Promise.