Protects your crank threads: installs between pedal and crank to keep crank threads intact and prevent wear when changing pedals frequently. Ideal for mechanics, rental bikes, or riders who swap pedals often. Precision engineering for reliable fit: fully CNC machined with automated thread rolling to produce a precise, secure thread pitch that mates cleanly with standard pedals and cranks. Eliminates shoetocrank friction: increases clearance for riders with larger feet or bulky shoes, reducing scuffing and rubbing against the crank during pedaling. Fits standard 9/16 threaded pedals: compatible with road bikes, mountain bikes (MTB), BMX, downhill bikes, and folding bikes that use the common 9/16 pedal thread. Easy to install and remove: threads directly onto the pedal spindle or crank as required, providing a quick way to protect components and improve clearance without permanent modification. Use scenarios Commuter or folding bike: add the extender when using platform shoes or larger soles to prevent constant scuffs to the crank arm on daily rides and when stowing the bike. Mountain and downhill riding: protect crank threads during frequent pedal swaps and maintenance, and gain extra clearance to avoid shoe rub on technical trails. BMX or demo setup: fit to bikes that see regular pedal changes or rental use to preserve crank integrity and ensure a consistently secure pedal connection. What makes it stand out Functional protection and clearance combined: designed specifically to stop thread wear while also solving shoecrank interference for riders with larger feet. Manufacturing quality: full CNC machining plus automated thread rolling ensures repeatable, accurate threads and a trustworthy connection with 9/16 pedals.