12mm Thru-Axle Dropout Surly MDS Chips, Shimano Direct mount hanger.

The 12mm slotted dropout chip med standard derailleur mount FOR maximum compatibility, made of cast and machined 6061-T6 aluminum, with a fender eyelet. capability to run a 12 x 142mm thru-axle in a single speed configuration.

The MDS is featured on most of our trail bikes. That’s right; Krampus Ops, Karate Monkey Ops, Instigator 2.0 and Ice Cream Truck frames.

SPECIFICATIONS

• 12mm thru-axle
• Compatible with Shimano direct mount derailleurs only
• Aluminum