Just a quick question on marchesini wheels and lighter wheels in general.
Along with the brake rotors and sprockets on the back wheel, what else does one have to swap off to fit Marchesini wheels?
Considering the weight of the bike, is a tiny reduction of weight really that noticeable? Like can the average joe feel the difference or does it take a pro at the track to really feel it.
The Marchesini wheels for the RC51 use the same front and rear brake rotor bolt pattern, so you can swap over your OEM or aftermarket rotors with no problems.
The Marchesini wheels use sealed bearings with captive spacers (spacers that fit into the inner bearing race and are held in place) as opposed to the OEM wheels that use separate bearings and dust seals along with non-captive spacers (spacers that aren't held by the bearing races).
Also the Marchesini wheels use different bearings than those used by OEM wheels. This is not big deal as they use bearings commonly available from any bearing house.
The Marchesini wheels do use a different rear sprocket bolt pattern than OEM.
You will have to order rear sprockets that use a 5-bolt pattern with a 100mm bolt circle, and 76mm sprocket I.D.
These can be bought from Vortex, Renthal, Driven, and others.
The wheels are lighter than OEM wheels, especially at the rim, which is the most important area of weight loss.
Because wheels are really flywheels, the less weight at the rim, the less energy is required to overcome inertia to spin up (accelerating) or spin down (braking).
And since there is less weight at the rim (less gyroscopic force), the the bike turns much quicker.
Wheels made of magnesium are even lighter with even greater results, and BST carbon-fiber wheels have even larger results than magnesium.
None of these wheels are cheap.
Use to be the BST carbon wheels were much more expensive than even the magnesium Marchesini, but of late, the magnesium Marchesinis are almost at parity with the BST's (which have gone down slightly in price), so the performance advantage is with the BST at that price level.
Otherwise, the forged aluminum wheels are the way to go.
A bit less expensive, but still with a performance gain over OEM.