does anybody know if i change clutch and spur gears from 18/46 to 22/42 will i need a different gear carrier as these seem to be bigger as a set, and the 42t gear has a bigger centre hole than the 46 so will i also need a different gear holder?(the back wheel for the gear which has 4 holes to attatch the the gear, thanks. as you can tell i don't really know what all the proper parts are called.