Borealis Bikes Yampa X0X9 Complete Bike - Road Bike Shop

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Borealis Bikes Yampa X0/X9 Complete Bike
Retail Price: $3599.00
Our Price: $2299.00
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The crew at Borealis is adamant -- fat bikes are for year-round use, on all kinds of trails and conditions. Having ridden them in both winter and summer, atop snow and desert sand and rock, we'd have to agree. The traction and flotation you get from a 4-inch tire just can't be matched. And paired with Borealis' carbon fiber design, it's a high-performing, fast, and agile traction machine. Up first need to be the axle standards -- if you thought mountain bike axles and bottom brackets are a sea of ever-changing "standards," you ain't seen nothing yet. The Borealis Yampa has a 197mm rear hub, which'll build up a dishless rear wheel, and a 135mm front hub, with a 10mm bottom bracket shell sitting in between. The reason for these three standards is pretty simple -- strength, tire clearance, and chain clearance. We mentioned the dishless rear wheel, but the Yampa will clear a 4. 8in tire on a 100mm rim, and to do that, the crankset needs to be offset a bit to the outside, thus the 100mm BB. The build is rounded out with SRAM's X0 and X9 components, BB7 mechanical discs, a Race Face crankset, and Truvativ cockpit. The wheels start with Borealis' own hubs, which are laced to Surly Turnagain rims, which have Surly Knards mounted to them.