Phil Cole
Veteran
Location: Redwood City CA
| MA works directly onto 6 mm, and on 5 mm shafts with an adapter. I have never seen a 4 mm adapter for the MA Pro Flex starter. While MA do have a part number for the 5 mm adapter, noone I've tried ever has them.
Pegae have adapters for 6, 5, and 4 mm. The start bearing is somewhat larger, so it could be more reliable. However I don't think that many people have had problems with the MA start bearing.
Pegae require adapters on 6 mm shafts, which are affixed with a setscrew. Setscrews mar the suface of the start shaft, which can lead to problems removing clutch and pinion bearings later on.
You can also consider hex starts. Hex adapters are availble for all start shaft sizes. The Robbe clutch uses a hex recessed into the top of the clutch assembly without a shaft, so it's not easy to adapt it to anything else. Vario also have a hex arrangement that does not lend itself to other schemes. So, the most universal system would be a hex start. |
