Ciclomaster models except CM-37, which uses group C
Magura Velotronic Easy: multiply these values by 2 for km, or by 1.243 for miles.
This can't be measured directly: if doing a rollout test, divide the result by 6.283. See further notes by John Allen if doing a rollout test.
| 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 700 C Tubular | 338 |
| Narrow 700C 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 |
If using a rollout test for greater accuracy, divide the result by 6.2832 (that is, divide by 2 * π). If you are using a calculator, it's easier and more accurate to use the π button!
For the Velotronic Easy, divide by 3.142 (or π) and also do the multiplication for miles. The exact multiplication factor for miles is 2/1.609344.
