Shimano Ultegra R8100 Ultegra 12 speed inner chainring, 34TNK for 50/34T US$ 19.95 ★★★★★ 4.0 (16 reviews)
Shimano Spares M9220 left hand crank arm unit with protection sticker, 165 mm US$ 145.50 ★★★★★ 4.3 (8 reviews)
Shimano DuraAce 09 Dura Ace 11 speed outer chainring, 54TNJ for 54/40T US$ 134.00 ★★★★★ 4.2 (7 reviews)
Shimano Ultegra 6800 Ultegra 11 speed outer chainring 50TMA for 50/34T US$ 154.00 ★★★★★ 4.2 (12 reviews)
Shimano Spares M615 outer gear fixing bolt and nut, M8 x 7 mm, set of 4 US$ 11.00 ★★★★★ 4.4 (28 reviews)
Shimano 105 5800 105 11 speed outer chainring 50TMA, for 50/34T, black US$ 92.00 ★★★★★ 4.7 (25 reviews)
Shimano 105 5800 105 11 speed outer chainring 52TMB, for 52/36T, black US$ 92.00 ★★★★★ 4.0 (24 reviews)
Shimano Spares M9000 chainring fixing parts and bolts for single, pack of 4 US$ 126.00 ★★★★★ 4.1 (21 reviews)
