Suncord Chain tensioner & Pulley with carbon composite for A/C LINE

Chain tensioner & Pulley with carbon composite for 1-3 speed Full carbon composite body. Upper guide wheel: 10T guide wheel ( /-steel gear) Single-sided carbon fiber side cover.(bushing) Lower guide wheel: 12T guide wheel ( /-steel gear) Single-sided carbon fiber side cover.(Titanium alloy pipes) Weight: 145g ±5g. For A/C line 1-3-speed. Compatible with this guide wheel⬇️ https://suncord.bike/product/suncord-derailleur-chain-tensioner-idler-set-for-brompton/ Chain tensioner & Pulley with carbon composite for 1-4 speed Full carbon composite body. Upper guide wheel: 10T guide wheel ( /-steel gear) double-sided carbon fiber side cover. Lower guide wheel: 12T guide wheel ( /-steel gear) double-sided carbon fiber side cover. Upper and lower black ceramic pipes. Effective variable stroke 25MM. The guide wheel adopts German linear bearings. Weight: 170g ±5g For A/C line 1-4-speed.   ATTENTION: Suncord products to be free from defects in materials or workmanship for a period of one year after original purchase unless otherwise stated below. The warranty is non-transferable and valid to the original purchaser of the product only. The warranty on Suncord products is NOT VALID if the products have been purchased from an unauthorized dealer/online retailer.