EXTENTION 7075 CNC INTEGATED BASHRING 22T – A unique CNC-machined integrated chainring and bashring.– Machined from 7075 aluminium alloy for maximum strength and durability.– One-piece design gives unrivalled stiffness.– Large cut-outs help reduce weight and look great too!– 22t chainring is ideal for most street trials bikes.– Recommended for use with 3/32″ chains, 1/8″ chains are likely to ‘scrub’ the back of the bashring.– Please note: ONLY compatible with cranks using their Direct Mount 3-bolt system, NOT with any other brand/model.– Pimp CNC-machined bashring is constructed from 7075 alloy, and has an integrated 22t chainring. BB24 – High quality street trials crankset , desinged for streettrials.– using their Direct Mount 3-bolt system.– Supplied with BB.– Crank arms are forged 6061 aluminium alloy, CNC-machined to remove weight where it isn’t required.– For use with a 68mm BB shell,NOT USE 73mm shell .Technical SpecificationLength: 170mmWeight: 465gBB: 24 SteelWeight Total: 780g BB30 – Top quality street trials crankset , desinged for streettrials.– 30mm diameter axle combined with unique spline interface for the crank arms ensures maximum stiffness and rigidity.– Using their Direct Mount 3-bolt system– Crank arms are 7075-T6 aluminium alloy, CNC-machined to remove weight where it isn’t required.– Supplied with BB.– This BB is compatible with all Extention frames.– Supplied as a kit including crank arms, self-extracting crank bolt, BB, spaceTechnical SpecificationLength: 170mmBB: BSA30Weight Total : 565g EXTENTION SUPERWIDE 7075 CNC SPROCKETSE -super wide,will not damage hubs.-7075 CNC ,super light weight-specially designed appearance