Middleburn chainring bolts are machined from solid 7075 T6 bar. As a result the heads and threads are extremely strong. We provide the bolts in a range of colours, perfect for adding the finishing touch to any chainset. They come in two sizes - one for double chainsets and one for singles.
Materials: 7075 T6 Alloy (outer), stainless steel (inner)
Weight: (per bolt) Alloy outers: 1.8g/2.3g (short/long)
Steel inners: 2.8g
Colours: Outer: Silver, Black, Red, Blue, Gold; Inner: Silver