This is a replacement 2015+ Specialized Road Bolt On Rear Thru Axle. 12mm x 135mm.

Specifications:

Hub Spacing: 12 x 135mm

Total Length: 163mm

Thread Pitch: M12 x 1.0

Allen Head: 5mm

This is compatible with the following bikes:

• 2018 Ruby Ruby Expert UDi2
• 2017 Roubaix Roubaix SL4 Comp UDi2 Rim
• 2017 Roubaix Roubaix SL4 Rim
• 2017 Roubaix Roubaix SL4 Sport Rim
• 2017 Ruby Ruby SL4 Comp UDi2 Rim
• 2017 Ruby Ruby SL4 Rim
• 2017 Ruby Ruby SL4 Sport Rim
• 2016 Crux Crux Elite Evo
• 2016 Crux Crux Elite X1
• 2016 Crux Crux Expert Evo
• 2016 Crux Crux Expert X1
• 2016 Crux Crux Pro Disc Frameset
• 2016 Crux Crux Pro Race
• 2016 Crux Crux SW
• 2016 Crux Crux SW Disc Frameset
• 2016 Diverge Diverge Carbon Frameset
• 2016 Diverge Diverge Comp
• 2016 Diverge Diverge Comp Cen
• 2016 Diverge Diverge Expert
• 2016 Diverge Diverge Expert Cen
• 2016 Diverge Diverge Expert X1
• 2016 Diverge Diverge Expert X1 Cen
• 2016 Diverge Diverge Pro
• 2016 Diverge Diverge Pro Cen
• 2016 Roubaix Roubaix SL4 Disc Power Specialized Edition
• 2016 Roubaix Roubaix SL4 Disc Power Specialized Edition Cen
• 2016 Roubaix Roubaix SL4 Expert Disc UDi2
• 2016 Roubaix Roubaix SL4 Pro Disc
• 2016 Roubaix Roubaix SL4 Pro Disc Frameset
• 2016 Roubaix Roubaix SL4 Pro Disc Race UDi2
• 2016 Roubaix Roubaix SL4 SW Disc Di2
• 2016 Roubaix Roubaix SL4 SW Disc Frameset
• 2016 Roubaix Roubaix SW Disc Frameset S-Build
• 2015 Diverge Diverge Carbon Di2
• 2015 Diverge Diverge Comp Carbon  

This product was added to our catalog on August 14, 2025