Trailer Part Burley Coho Thru Axle 12x1.75 142-148mm Black MFPN=E-BIKESOCKET08 }Shimano Tiagra FC-4703 10-Speed Chainring

}Shimano Tiagra FC-4703 10-Speed Chainring - 50t Asymmetric 110 BCD Black

Braze-on style

7 Front Axle 15mm Thru x 110mm Stanchion Diameter 38 Maximum Tire Width 72 S

description 12x142/148/157mm rear end cap kit compatibility E-Sync and Neo CL XD/HG disc hubs

Trailer Part Burley Coho Thru Axle 12x1.75 142-148mm Black MFPN=E-BIKESOCKET08 }Shimano Tiagra FC-4703 10-Speed ChainringBurley Ballz Thru Axle: 12 x 1. 75 142 148mm. Burley Coho Axles Enables connection of the Coho XC trailer to bikes with 12mm rear thru axles. Multiple thread pitches and lengths available. Stock thru axles are not able to accommodate any sort of axle mounted hitch system. A Burley Coho Ballz Thru Axle is required for any bike with a 12mm rear thru axle to use the Coho XC. The Burley Ballz Thru Axle is not compatible with all carbon fiber bike frames