X-17 T A1 series (Track Bike)
Looking for some variation In Crank length?, the design team at AEROZINE have devised this unique system (ALS) of a slotted tapered pedal insert so you can choose crank length.
On the one crank arm you can choose a 5mm variation( other inserts available in2/3/4mm,to purchase)by flipping the insert. Or change the insert to any of the included sizes.
Spindle: 7075 Aluminum CNC 30mm B.B. axle
Adjustable Length System (ALS reversible insert) = 5mm
EXCLUDES BOTTOM BRACKET AND CHAIN RING
Being a 30mm axel you will need a 30mm bb, aeroize also make a nice 30mm BB follow link below
excludes chainring, bottom bracket, chainring bolts