Click to expand Tap to zoom PBI Cnc Transmission Sprocket. 21T for L84-90 4-Speed XL by PBI Save £-12.66 £57.11 | / SKU MCS930006 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart DescriptionPBI CNC transmission sprocket. 21TDetailsCNC machined; 8620 alloy steel; Heat treated; Nickel plated; USA made; OEM 21t replacement (35208-84)L84-90 4-speed XL