Allows you to adjust your rear wheel track 1mm at a time to find that ultimate edge on your competitors.
Made of durable plastic.
Kit comes with:
4x    3mm spacers
2x    4mm spacers
2x    5mm spacers
2x    10mm spacers
2x    20mm spacers
Handy cheat sheet that allows you to see the combination of color coded spacers to use for a desired setting