They recommend the 36T for most people

Retention System: Lazer's advanced turnfit system gives a 360 degree vertical and horizontal range of adjustment so you can get your fit perfect

TLR-2 FEATURES:

Chlorine-free + azo free

so you can "upgrade" your SLX or XT 11 speed derailleur by adding Premium Grade XTR wheels if you like

Etnies Culvert Mid Flat Shoes - US 8.0 - Green - Black Ignore Wholesale Tier 1 Brand Rule They recommend the 36T forThe Culvert is a flat soled Enduro downhill shoe from Etnies with a sticky Michelin compound that provides excellent pedal and surface grip. It has a force shield reinforced upper with a hot melted toe and heel cap. The upper is also Repel treated to block moisture and includes a 3M Thinsulate lining. Tongue gussets shield moisture, dirt, and pebbles. Includes a lace pocket on top of the tongue with TPU moulded Pedal Shank 2 in the midsole. The