AlpineStars Youth Neck Roll - Youth S-M - Black - Red Heavy/Bulky The bottom bracket fitting is

The bottom bracket fitting is for 16 notch

10mm outer

smoother shifts and improved ergonomics to provide the ultimate shifting experience

The Yakima Hangover 4 bike rack is the first of its kind from Yakima

AlpineStars Youth Neck Roll - Youth S-M - Black - Red Heavy/Bulky The bottom bracket fitting isDesigned and developed specifically for younger riders, the Sequence Youth Neck Roll is the starting point on a junior riders journey to the Bionic Neck Support. Ergonomically profiled for young riders body requirement the Sequence Neck Rolls frame is designed to transfer energy impact away from the upper neck. Construction: New hybrid kids neck protection with extended tail for high position stability. Ergonomic designed and engineered shape to fit