Group D Cyclecomputers

If the model name is highlighted, clicking on it will take you to detailed setting instructions.

Ciclomaster models except CM-37, which uses group C
Magura Velotronic Easy: multiply these values by 2 for km, or by 1.242 for miles.
spoke divider

Radius in millimeters

700 X 44 354
700 X 38 347
700 X 35 345
700 X 32 342
700 X 28 336
700 X 25 335
700 X 23 333
700 X 20 332
27 X 1 3/8 345
27 X 1 1/4 343
27 X 1 1/8 342
27 X 1 340
26 X 2.125 330
26 X 1.9 324
26 X 1.5 312
26 X 1.25 311
26 X 1.0 (559 mm) 305
26 x 1 (650C) 311
Wide Tubular 338
Narrow Tubular 335
26 X 1 3/8 330
24 305
24 x 1 279
20 X 1.75 (406) 254
20 X 1 1/4 (451) 257
17 x 1 1/4 211
16 x 1 3/8 204

Feedback? Questions?

Harris
Home
Articles
A-Z
Beginners Brakes Commuting
Lights
Cycle-
Computers
Do-It-
Yourself
Essays Family
Cycling
Frames Gears &
Drivetrain
Bicycle
Humor
Bicycle
Glossary
Bicycle
Links
Old
Bikes
Repair
Tips
Tandems Touring What's
New
Wheels Sheldon
Brown

Bicycles
Current
Bicycle
Closeouts
Brakes Drive Train
Parts
Fixed-Gear
Stuff
Handlebars,
Headsets, etc.
Hubs
Heart
Monitors
Saddles,
Seatposts
Specials
Parts & Acc.
Three-Speed
Parts
Tools What's New Wheels
Tires, etc.

Copyright © 1997, 2008 Sheldon Brown

Harris Cyclery Home Page

Updated Updated Friday, December 4, 1998 9:27 AM
URL: http://sheldonbrown.org/cyclecomp_d.html