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Ships within 48 hours · Estimated delivery Sep 10 - Sep 15
One spring design
LENGTH: 135mm/5
Lightweight and 100% American Made
Available in 170mm and 175mm lengths
Chainring Compatibility: Designed for use with a single chainring setup
Rennen Smart Sprint Speedometer rims One spring designRennen Smart Sprint Speedometer is a first of its kind BMX specific speedometer. The Smart Sprint was designed and built for the BMX racer. Whether your evaluating your performance on the track or during your sprint session, Smart Sprint has you covered. FEATURES: 0 20mph: Measure how long it takes for you to get up to 20mph. Perfect for evaluating if your training is working. The smaller the time the faster your getting Distance timer: Measure the
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