Light weight machined aluminum crank arms with aluminum 5-bolt 110mm spider. Available in several sizes from 125mm to 165mm. One of the lightest arms on the market, the Answer crank has been reinvented. The highest strength-to-weight ratio of any mini crank on the market. J&R Helpful Hint: This crank set requires a square spindle bottom bracket and typically needs a 113mm length. You will need a crank arm puller for these cranks (and to possibly remove your old cranks) that works with square spindles. You will usually use the short chromoly or standard alloy chainring bolts (unless you use Profile or some other thicker chainring). As with all 3-pc cranks they require 9/16" pedals. Weight: (white option adds a few grams to each size due to the weight of powder coating - weights are based on the black anodized arms and spider)100mm Black: 8.6 oz100mm White: 8.8 oz105mm Black: 8.8 oz105mm White: 8.8 oz110mm Black: 8.8 oz110mm White: 9.0 oz115mm Black: 9.4 oz115mm White: 9.6 oz120mm Black: 9.7 oz120mm White: 9.7 oz125mm Black: 10.0 oz125mm White: 10.2 oz130mm Black: 10.8 oz130mm White: 10.8 oz135mm Black: 11.0 oz135mm White: 11.0 oz140mm Black: 11.2 oz140mm White: 11.4 oz145mm Black: 11.6 oz145mm White: 11.8 oz150mm Black: 11.9 oz150mm White: 12.0 oz155mm Black: 12.1 oz155mm White: 12.2 oz160mm Black: 12.3 oz160mm White: 12.4 oz165mm Black: 12.6 oz165mm White: 12.8 oz
