Race Face Era Crank Arms No BB 136 BB 170mm Stealth CheckoutTitle=Surly Trailer Hitch Assembly Direct mount outer chainring and

Direct mount outer chainring and 90 bcd inner chainrings

Material Nylon Case Pack Yes

} Lightweight forged 6061-T6 aluminum platform

Replaces the existing cradle in a couple of minutes with an allen wrench

}Industry Nine Hydra Classic Rear Hub - 12 x 148mm 6-Bolt XD Purple 28H

Race Face Era Crank Arms No BB 136 BB 170mm Stealth CheckoutTitle=Surly Trailer Hitch Assembly Direct mount outer chainring andReimagined carbon crank is 300% stronger than Next R cranks Patent pending insert redesign means loose inserts are a thing of the past Steel wear plate improves durability Versatile Cinch system offers interchangeable spiders, limitless ring combinations, swappable width 30mm alloy spindles, and full compatibility across all relevant frame standards 136mm wide spindle: 52mm chainline on bikes with Boost 148mm rear spacing (optional: use Shimano 12sp