Join Date: Jan 2011
Location: eastern sierra california
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- You have to get a SP2 rear engine spacer, the one that fits into the provision which the swing arm bolt slides through.. there is no part # for this... trust me, I have already done this mod on my old rc51 sp1.. otherwise, yes its a nice improvement performance wise, but unless your a madman on that bike you may not notice, but its cosmetically a big improvement in my opinion... my 2 Cents.
SP2 track bike