Extralite Black Lock QR12 (front)
The world’s lightest 12mm front skewer for road bike
A new way to Block
- Weight: 19g (116m) - 20g (120mm) - 21gr (125mm) - 20.5gr (Trek Emonda) - 19gr (Specialized)
- Front skewer, for 12mm axle
- Axle: Al 7075 T6 CNC
- Special: Bronze self lubing washer
- Graphics: laser etched
- Extremely light thru-axles
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 Extralite usual Extra-care, makes you save up to 50g!
The bronze washer adds a smooth action, a tricky nice touch.
Black Lock are supplied separately from Extralite wheelsets.
100% made in Italy
Specs 116mm :
-total length (from under axle head to end of thread) : 116mm
-Thread length: 12.5mm
-Head shape: flat
-Thread type: M1.5 (i.e. 10 threads have a 15mm length)
Specs 120mm :
-total length (from under axle head to end of thread) : 120mm
-Thread length: 12.5mm
-Head shape: flat
-Thread type: M1.5 (i.e. 10 threads have a 15mm length)
Specs 125mm :
-total length (from under axle head to end of thread) : 125mm
-Thread length: 14mm
-Head shape: flat
-Thread type: M1.5 (i.e. 10 threads have a 15mm length)
Specs Trek Emonda:
-total length (from under axle head to end of thread) : 122mm
-Thread length: 12mm
-Head shape: flat
-Thread type: M1.75 (i.e. 10 threads have a 17.5mm length)
Specs Specialized:
-total length (from under axle head to end of thread) : 114mm
-Thread length: 12.5mm
-Head shape: conical
-Thread type: M1 (i.e. 10 threads have a 10mm length)