Product Description The Better Boost adapter kit by MRP is the link between your Non-Boost wheel with Hope Pro 6-bolt hub and your Boost fork. Conversion is very easy with 6-bolt hubs: The set consists of two precision-machined end caps, a spacer for the brake rotor and needed screws, making assembly possible in just a few minutes. Specifications:Convertible to: 15 x 110 mm thru-axleBase Model: 15 x 100 mm thru-axleCompatibility:Hope Pro 2 6-BoltHope Pro 2 Evo 6-BoltHope Pro 4 6-BoltManufacturer Number:WB-17-5207 Contents:2 x MRP for Hope Pro 2 / Pro 2 Evo / Pro 4 6-Bolt end caps1 x MRP 6-bolt spacer6 x bolts Manufacturer: MRP 580 N. Westgate Dr. Grand Junction CO 81505 USA info@mrpbike.com Distributor: everyday26 Siedlerstr. 22 84109 Wörth Germany info@everyday26.de