I have a speedfight 2 100cc 58 plate i have bought a tecnigas exhaust for it and im wondering what weight rollers i need. think the standard ones are 12.8gramms. dont know if it matters but the standard exaust is catalysed.
go down to about 9.5 but you might need to mess iwth the weihgt a little depending on your weight etc.. ve have the malossi and polini ones , the rms ones are not ideal for this they have an online shop at ve-uk.com
