Product Description Specifications:Function:Fork maintenance and repairTool Type:special toolCompatibility:1.5" , 1 1/4" ; steerer tube length up to 425 mmTechnical Information:Material:steel, aluminiumFeatures:crown race setter for 1.5" and 1 1/4" (S.H.I.S. 33 and 40)with aluminium inserts to protect the crown racetough impact tube can endure blows from a hammer (not included)enables fast, safe and precise assemblywith extension for steerer tube lengths up to 425 mmInstructions:1. Measure the outer diameter of the crown race seat on the steerer tube and the inner diameter of the crown race. The crown race must be approx. 0.1 - 0.2 mm smaller than the crown race seat for a proper press fit. If the difference is greater, mill the crown race seat to size (applies to forks with metal crown race seats). If the crown race can be pushed onto the seat too easily, a suitable retaining compound, e.g. from Loctite, should be used. If the inner diameter of the crown race > outer diameter of the seat, assembly is not possible. 2. Place the crown race onto the steerer tube and push it as far as possible towards the crown race seat. 3. Place the appropriate aluminium ring (for 1.5" or 1 1/4" ) on the fork cone. 4. Place the driver tube over the aluminium ring. If the steerer tube is longer than 335 mm, use the extension parts. Drive the crown race with measured hammer blows until it sits properly flat. Manufacturer Number:CRS-15.2 Contents:ParkTool CRS-15.2 crown race setting system, consisting of: 1 x driver tube 829A1 x extension spacer 828A1 x extension tube 829-EXT1 x aluminium stepped cup 827 for 1.5"1 x aluminium stepped cup 821 for 1 1/4" Manufacturer: Park Tool Company 1185 Eagle Lake Rd Shoreview MN 55126 USA info@parktool.com Distributor: GROFA Action Sports GmbH Otto-Hahn-Straße 17 65520 Bad Camberg Germany info@grofa.com