Extralite Black-Lock 12x148mm Boost Rear Thru-Axle
Extremely light thru-axles for 12mm thru axle Boost frames. Their unique design ensures a prefect function with a well balanced dimensioning.
The notched area of the thread get reinforced by the allen groove and locking/tightening forces do not affect the axle with useless torsional stress.
Machined with our usual Extra-care, makes you save up to 50g! The bronze washer adds a smooth action, a tricky nice touch.
Specifications
AL 7075 T6 CNC Axle
6mm Allen on thread side
Bronze self lubing washer
Laser etched graphics
100% made in Italy
Mfr Claimed Weight
31g
| Model | Compatibility | Head type | Total length | Thread length | Thread pitch | Weight |
|---|---|---|---|---|---|---|
| BlackLock 12.1 B | Shimano E-Thru Boost | Flat | 178 | 18 | M12x1.5 | 31g |
| BlackLock 12.2 B | Specialized X-12 Boost | Conical | 166 | 17 | M12x1 | 31g |
| BlackLock 12.3 B | Maxle "Boost" 182 | Flat | 182 | 20 | M12x1.75 | 30g |
| BlackLock 12.4 B | Scott Boost, Cannondale F-si 2019 | Flat | 172 | 17 | M12x1 | 29g |