Thorn Tandem Disc Forks - Pure Orange Imron

Heavy Duty Tandem Fork Blades
400mm 1.1/8th" Heavy Duty Steerer - ED coated.
Stainless M6 Boss for Headlight Bracket
Double drilled M5 plate under crown for Direct-fitting of mudguard
Single M5 boss on outside of fork blade for mudguard stay.
Stainless ISO disc mount for up to 203mm rotor
Axle to crown 410mm
Axle to under the crown 372mm
Axle to crown front boss 385mm
135mm spacing between stainless dropouts - suits FDS (front disc standard) such as Hope FatSno or SON 28 135 VR 6-Bolt Disc Dynamo Front Hub.
Offset 60mm

http://www.sjscycles.com/thornpdf/ThornRavenTwinBroHiRes.pdf