Surly Mr. Whirly Crank Arm Set, 170mm, Black

by Surly

Product Features

• Crank Arm Sets

Product Description

Surly Mr. Whirly Crank Arm Sets are sold without spider or spindle for complete customization.

• Build it to be the crank you want: single, double, triple or trials
• Outboard-style bearings must be purchased separately; use Shimano Mtn, Race Face X Type or FSA MegaEXO
• Chainrings, and chainring mounting bolts sold separately
• Armsets include non-drive side bearing adjust cap, drive side PTO bolt & cap, and two sets of spider mounting bolts (one short for spider mounting only, and one long for mounting spider with granny ring)
• Forged and machined 7075 aluminum

Item Specifications
Color	Black
Weight	605g
Intended Use	Mountain
Chainring BCD	58mm
Arm Length	170mm
Crank Intended Use	Mountain,Single Speed,DH/Freeride
Defined Color	Black

Product Details

• Item Weight: 1.6 pounds
• Shipping Weight: 1.6 pounds (View shipping rates and policies)
• ASIN: B001CK2KJ6
• Amazon Best Sellers Rank: #950,795 in Sports & Outdoors (See Top 100 in Sports & Outdoors)