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45Nrth is brand that designs and imports cold weather bicycle   tires,   garments, and pedals, created in August 2011. 45Nrth is owned, operated, and housed by Quality Bicycle Products (QBP) at its main headquarters and warehouse in Bloomington, Minnesota.

The brand has created bicycle products for cold temperatures, ice, and snow. Starting with bicycle snow tires, the company later expanded into studded bicycle tires, snow-shedding pedals, cycling boots, and insulating apparel. The first studded fatbike tire, Dillinger, was released by 45Nrth in 2012.

The brand periodically sponsors winter cycling races and events, including the Great Lakes Fat Bike Series, and regularly participates in the Frostbike winter cycling convention.

Tires
45Nrth produces tires for a variety of rim sizes, including commuter bikes, mountain bikes, and fatbikes. For riding in snow, the tires utilize deep tread designs and siping for traction. For icy conditions, certain tires offer holes for studs. The tires produced by 45Nrth complement other brands owned by Quality Bicycle Products, including Whisky Parts Co., Surly, and Salsa. The 45Nrth brand often references Minnesotan culture in its tire names, including Dillinger 4, Hüsker Dü, and Xerxes.

The brand started with the Polara and Arcwelder studded tires, now both discontinued, and expanded with other fatbike tires including Hüsker Dü and the now-retired Escalator tire. All tires from 45Nrth narrower than 3.8" can house studs for icy riding conditions. The widest market-produced fatbike tire with studs, the Dillinger 5, along with the first tubeless-ready fatbike tire, Vanhelga, were both released in fall 2014.

Studded Tires
Studded tires made by 45Nrth offer removable studs and can be custom-studded if desired. Types of studs include: The concave studs provide better traction on ice and are usually included with 120 tpi versions of the tires offered by 45Nrth.
 * Concave studs
 * Carbide-aluminum studs
 * Steel carbide studs

Cycling gloves, pogies, and headwear
45Nrth uses Merino wool as the primary material for apparel. Available garments include balaclavas, casquette, and glove liners. A branded pair of 45Nrth pogies, called "Cobrafist," are also available for an additional layer against winds in cold temperatures. Pogies can supplement gloves by adding another layer of wind protection on a pair of flat handlebars.

Footwear
The Wölvhammer and Fasterkatt lines of footwear aim to maintain warm feet in cold temperatures. Cycling boots from 45Nrth are produced in both clipless and platform pedal compatible versions. Each wearable product is rated by a suggested temperature range, and some products can work together to provide extra warmth, such as the Bergraven gaiter and the Wölvhammer cycling boot.

Pedals
The only bicycle component 45Nrth has released outside of tires are pedals specifically designed for snow and ice. The open form of the pedals allows them to shed snow. The pedals contain provide the option of removable studs for extra grip instead of clipless pedals.