Black Series alloy cranks are directionally CNC machined from grain orientated 7075 T6 heat-treated aluminium, with a CNC machined spider in 7022 aluminium featuring a universal 5-bolt 130 BCD Standard bolt circle diameter. Extremely low weight and high strength. The integrated 30 mm diameter integrated hollow 7075 T6 heat-treated aluminium axle (fixed to the drive side arm) is a key feature of the cranks design, creating one of the torsionally stiffest systems on the market resulting in maximum power transfer, efficiency and silky smooth operation. This system is also the only of its type to fit practically all-current BB-standards through the use of frame specific BB cups (supplied separately) Supplied with Tune’s latest CNC machined 7075 T6 heat-treated aluminium Chainrings with hard anodised finish, the Black Series Chainset is compatible with 9, 10 and 11 speed groupsets, both mechanical and electronic. Each Chainring features a tooth profile, ramp and pin design compatible with Shimano, Sram and Campagnolo systems. The perfect combination of form and function. A timeless design with classic lines, beautiful ball burnished & hand polished finish and laser-etched graphics. Proven in World Championship competition. Hand made in Germany by Tune….
– Black Series by Tune SRC 130 BB30 Double Road Chainset Chainsets – £298.5 (RRP – £)
