The JONESIN’ frame is Sam Jones' signature frame. As you may know Sam is a master of front end tricks and he designed his new frame with a steep 76° headangle especially for those moves. Coupled with a short 12.7-13.2" rear end and a 8.9” standover as well as using our new superscoop chainstay tubing for added tire clearance... Features- SuperScoop chainstays- Extra wide rear end- Invest cast seatstay bridge- NO brake mounts- 7mm thick invest cast dropouts- Built in chain tensioners SpecificationsToptube lengths - 20.8 / 21Headtube angle - 76°Headtube length - 117mmSeattube angle - 71°Rear end length - 12.7-13.2"BB Height - 11.7"Standover height - 8.9"Weight - 2.7kgBrake mounts - None - brakelessTubing - Sanko Japanese seamless 4130 CrMo / triple buttedHeadtube - Heat treated 4130 CrMo / CNC / Offset thicknessBottom Bracket - Heat treated 4130 CrMo / CNC machinedChainstay - SuperScoop tubingDropouts - Heat treated 4130 CrMo / Invest castSeatclamp - Built in