Polini
Polini Gears 13/44
$ 124.49
Bring your rpm's down, and your top speeds up with a set of gears. These typically give you a 10mph bump in speed, and sometimes more depending on transmission tuning....
Polini Evo gearbox cover
$ 129.99
Something new from the POLINI Evolution Series: a reinforced transmission cover. All three gear shafts are guided through ball and needle bearing. This reduces friction and has a positive effect...