Clutch size?

[Laurens]

I'm wondering if I have an older clutch or not, because mine is a lot smaller then my R90 clutch. I think there was an upgraded heavier duty clutch, thats able to take a 90 engines power.

I haven't measured the OD yet, but what should it be so I know I have the best clutch for a 90?

[DavidH]

Heavy Duty Clutch Bell 50 mm diameter
Regular Clutch Bell 44 mm diameter

David

[r2160]

I have the smaller clutch in a tempest 3d running a YS91. I have had no problems with the smaller clutch at all. It has been flying fine.

cheers
Glenn

[Laurens]

I don't have any problems either, but it just looks odd to me, being used to huge clutches.