Product Description The Gnot Boost rear thru-axle by Surly - subtle and unobtrusive. It is suitable for Surly's Gnot Boost frames and, with its low profile, does not detract from the aesthetics of these beautiful frames. Specifications: Over Locknut Dimension: 142 mm Axle Diameter: 12 mm Technical Information: Use: Rear: 12 x 142 mm Type: Thru-axle Axle Material: Aluminium (7075) Nominal Diameter: M6 Thread Pitch: 1.0 Technology: Gnot Boost: Surly Gnot Boost technology allows for the mounting of different over locknut dimensions on the rear wheel. Rear wheels with 12 x 142 mm or 12 x 148 mm thru-axles can be mounted by clamping or spreading the frame. Wheels with an over locknut dimension of 135 mm can be used in frames with Gnot Boost technology by employing the rear wheel axle adapter. Models: 12 x 142 mm: Over Locknut Dimension: 142 mm Axle Diameter: 12 mm Compatibility: Karate Monkey, Krampus, Troll, Ogre, ECR Manufacturer Number: FS1176 Contents: 1 x Surly Gnot Boost rear thru-axle Manufacturer: Surly 6400 W 105th St Bloomington MN 55438 USA derby@surlybikes.com Distributor: Cosmic Sports GmbH Leyher Straße 47 90763 Fürth Germany info@cosmicsports.de