Honda C50 C65 C70 C90 Rear Sprocket Bolt, Nut & Lock Plate Kit
Complete 10-piece aftermarket rear sprocket fixing hardware kit for compatible classic Honda Cub models. Ideal for replacing worn, corroded, rounded or missing sprocket fasteners and locking plates.
Kit Contents
- 4 × rear sprocket mounting bolts
- 4 × 8 mm hex nuts
- 2 × curved tongued locking plates / tab washers
The photographs show the four bolts supplied with their matching nuts and two curved locking plates, all with a gold/iridescent plated finish. The two lock plates bridge pairs of sprocket fasteners; once the nuts are tightened, the tabs are bent against the nut flats to provide a positive mechanical lock.
Main Applications
- Honda C50 / Super Cub 50
- Honda C65 / Super Cub 65
- Honda C70 / Passport / Super Cub 70
- Honda C90 / Super Cub 90
Fitment depends on model year and market. This kit is intended for rear sprocket carriers using the four-bolt arrangement with two curved tongued locking plates. Compare the original hardware and product photographs before ordering.
Honda OE Reference Numbers
- 90128-001-030 – rear / driven sprocket mounting bolt
- 90522-001-000 – tongued rear sprocket locking washer / lock plate
- 94030-08000 – Honda 8 mm hex nut reference used on relevant rear-wheel assemblies; confirm against the parts fiche for your exact model
These Honda numbers are supplied as fitment and cross-reference information only. The kit being sold is an unbranded aftermarket replacement and is not supplied as genuine Honda.
Aftermarket Cross-References
- 90522-90128 – aftermarket rear sprocket locking/fixing kit reference used by specialist Honda parts suppliers
- SCL-2013030757 – aftermarket supplier reference for a comparable final-drive sprocket fixing plate and bolt kit
Aftermarket reference numbers can identify comparable kits from other suppliers; they are not claimed as the manufacturer part number of this unbranded set.
Before Ordering
- Confirm your rear sprocket uses 4 mounting bolts and 2 curved lock plates.
- Compare the bolt head, shank, thread, overall length and locking-plate shape with your original parts.
- Use Honda OE references 90128-001-030 and 90522-001-000 as the primary cross-check.
- Do not rely on model name alone because Honda changed wheel and sprocket hardware between years and markets.
Installation
Rear sprocket fasteners are safety-critical drivetrain components. Inspect the sprocket, carrier and mounting holes before fitting. Install the hardware correctly, tighten the nuts evenly to the specification stated in the appropriate Honda workshop manual, then bend the locking tabs firmly against the nut flats. Replace any damaged sprocket or carrier components rather than relying on new fasteners to correct wear.
Condition
New aftermarket replacement set. Supplied as a complete 10-piece kit as shown in the photographs.