Sorry to spoil the speculation of all that extra effective power, but the lighter your rims are will not make that much difference I'm afraid unless you can make your tyres lighter as well...
OK it will help a bit in the rotational inertia bit, but the further away the weight is from the centre, the more effect it will have - so all you will change is the rotational inertia of the wheel itself
Personally I doubt that you would notice the difference in rotational inertia as you also seem to have overlooked the fact that the largest resistance to the wheel spinning is tyre grip - not the weight of the wheel...
Unless you're thinking of taking up ice-racing without studs of course! :wink:
Migration info. Legacy thread was 109447
OK it will help a bit in the rotational inertia bit, but the further away the weight is from the centre, the more effect it will have - so all you will change is the rotational inertia of the wheel itself
Personally I doubt that you would notice the difference in rotational inertia as you also seem to have overlooked the fact that the largest resistance to the wheel spinning is tyre grip - not the weight of the wheel...
Unless you're thinking of taking up ice-racing without studs of course! :wink:
Migration info. Legacy thread was 109447