Hope Spiderless Retainer Chainring - 30t Boost Hope Direct Mount R22 BlackHope Spiderless Retainer Chainring 30t Boost Hope Direct Mount Black. Hope Spiderless Direct Mount Retainer chainrings are specifically designed for use with Hope cranksets and have a narrow wide tooth configuration designed for 1x10 1x11 and 1x12spd setups without the need of a chain guide. Only Shimano 12 speed option suitable for use with Shimano 12 speed chain and Shimano quick linksCompatible with 9 10 11 and 12 speed set ups CNC machined 7075 T6