Lightweight and strong, unibody CNC-machined 56T chainring chainguard, made of genuine aerospace grade 7075 aluminium alloy, and hardened with T6 heat treatment. Fits Brompton cranks, or any other cranks with BCD 130. Available in Black, Grey, or Silver BCD: 130mm Material: Genuine 7075-T6 heat-treated aluminium alloy Machining: CNC from single block Weight: 120g (17% reduction from Brompton’s stock 54T weighing 145g) Chainring bolts not included If upgrading from a chainring of smaller size, you’ll need a new, longer chain and rear sprockets (sold separately) Made in Taiwan by H&H
