Simple Wheel Slammers Pair

These little gadgets fill the gap between your axle and the back of your drop out, so they work just like a chain tensioner but are super neat and light. One of the best and "simple"est ideas I've seen for a while. The slammers come in 14 sizes from 0.5mm to 8mm so will work with any frame / chain / chainwheel combination. Each slammer has a different size on each side so there's 7 different combinations available...

The sizes are as follows:
0.5 and 1.0mm
1.5 and 2.0mm
2.5 and 3.0mm
3.5 and 4.0mm
4.5 and 5.0mm
5.5 and 6.0mm
6.5 and 7.0mm
7.5 and 8.0mm

Sold in a pair

A Peg adaptor is also available which provides a larger area for a peg...