Surly O.D. Ice Cream Truck Fat Bike Crankset - 22/36 Teeth

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Description of Surly O.D. Ice Cream Truck Fat Bike Crankset - 22/36 Teeth

This version of Surly's O.D. 2x crankset is especially suited for Ice Cream Truck fatbike. It offers frame and tire clearance while maintaining a reasonable q-factor (pedal stance). Maximizing the distance between the chain and the tire is important on fat bikes. With normal cranks, wide tires on wide rims can rub the chain when in the lowest, or farthest-inboard, gear combinations. The O.D. crank doesn’t just add a longer spindle to move the rings outboard. Rather, it does away with the big ring of a standard triple and moves the middle and granny rings to the outer and middle positions. This effectively moves the rings outboard without moving the arms outboard too. The O.D. is a simple, dedicated version of this idea.

Forged of 7000 series T6 aluminum, the O.D. crank is a 2-piece, with spindle embedded inextricably in the drive side arm. It’s a dedicated 2x, although its chainline is outboard a bit compared to standard mountain cranks, and it is 9 and 10 speed compatible.
This version fits 132 mm PressFit 41 BB shells on symmetrical asymmetrical frames with a maximum tire clearance of 5". It will also fit most frames with a symmetric 190/197 mm rear spacing.

The chain rings (36/22) are designed to shift best in specific combinations.

The bearings on which they spin are also worth mentioning: Surly upgraded these bearings to aftermarket Enduro bearings with double labyrinth seals, meaning they actively shed and stay clean of dust, muck, and grime, even in wet and muddy climates.
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Fact Sheet of Surly O.D. Ice Cream Truck Fat Bike Crankset - 22/36 Teeth

Product Name: Surly O.D. Ice Cream Truck Fat Bike Crankset - 22/36 Teeth
Manufacturer: Surly Parts
Item Code: SUR267608
Year: 2018
Material: crank arms: 7000-T6 aluminium
chain rings: aluminium at 94mm BCD, stainless steel at 58mm BCD
spindle: chromoly steel
Chainwheel, number of teeth: 22/36 teeth
Fitting for derailleur: SRAM and Shimano 9 and 10-speed
Axle profile: integrated 24 mm crank spindle, 157 mm length
BB shell width: 132 mm (PF41)
Bolt Circle (mm): 94/58mm
Type of chain: 9/10-speed
Q-Factor: 213,8mm
Included in delivery: crankset including PF41/132 bottom bracket cups
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