Quick Answer:  Spike Pedals – Downhill, Freeride, Bike Park, Dirtjump Oozy Pedals – Trail, Enduro, All Mountain Spoon 90 Pedals – All Round MTB - Ladies / Kids / Small Footed Riders Spoon 100 Pedals – All Round MTB – Average Size Riders Spoon 110 Pedals – All Round MTB – Larger Riders / Winter RidingSpank has developed the right flat pedal for every MTB enthusiast. Spike Pedals are designed to take the abuse of Downhill and Freeride, with high load strength and impact resistance, and 20 pins per pedal to maximize traction and security in rough terrain at high speeds. Spike pedals are constructed of forged alloy bodies and forged chromoly axles, and have reinforced frontal impact areas. If your riding style sees you often doing big jumps and/or drops, and frequent impacts with rocks and other obstacles, Spike pedals are recommended for you. Spike pedals are designed to fit a wide range of shoe sizes, with a 100x100mm pedal body. So, unless you are a rider with very small feet, or exceptionally large feet, Spike pedals should fit you perfectly.  Oozy Pedals are based on the same design as Spike pedals, and also fit a wide range of shoe sizes, with a 100x100mm platform size. Oozy pedals have however been highly CNC weight optimized, to meet the weight restrictions of discerning trail, all mountain, and enduro riders. Oozy pedals have a similar high load strength to Spike pedals due to forged alloy bodies and forged chromoly axles, however have much thinner impact areas, so are not recommended for riders who frequently impacts with rocks and other obstacles at speed.  Spoon 90 Pedals are designed for all round MTB use, including downhill and freeride, but are sized specifically to fit smaller riders with shoes size US 6 / EU 39 and under. Spoon 90 Pedals have a 90x100mm platform size, which offers high a level of support to the foot, while still positioning the pins around the outer perimeter of the shoe for max traction.   Spoon 100 Pedals are designed for all round MTB use, including downhill and freeride. Spoon 100 pedals are sized for the average rider, with a 100x100mm platform size, and are best suited for shoe sizes US 7-10 / EU 39-45.  Spoon 110 Pedals are designed for all round MTB use, including downhill and freeride. Spoon 110 pedals are sized for riders with larger feet, or riders that often ride in boots (for example fat bike snow riders), and are best suited for shoe sizes US 11 / EU 46, and up, or wide footwear.