520120 Transmission sprocket, 23t
incl. VAT
Chapter members save 15% · Sign in for member pricing
Estimated delivery: 3–15 working days
Authorised
Iron City Dealer
14-Day Returns
Easy & hassle-free
Secure Checkout
256-bit encryption
Free UK Delivery
On orders over £100
Specifications
- Brand
- MCS
- Part Number
- 520120
- OEM Reference
- 520120
- Pack Quantity
- Each
- Category
- Sprockets Transmission
- VAT Rate
- 20%
About This Product
For those running the early 5-speed gearboxes on Big Twins from 1979 to 1985, this 23-tooth transmission sprocket from MCS offers a dependable solution for your final drive. A 23-tooth setup is a popular choice for riders looking to slightly adjust their gear ratio for better high-speed performance without sacrificing too much off-the-line snap. This sprocket is built to withstand the heavy loads of a Big Twin drivetrain, ensuring that every bit of power from your Shovelhead or early Evo reaches the ground. It is a rugged, no-nonsense part that fits precisely on the transmission mainshaft, making it an essential component for any gearbox rebuild or chain maintenance project.
Manufacturer part number: 520120.
Fitment
79-85 Big Twin 5-speed
Related Products
View all →
More from MCS
View all →
Who are we? Leeds Harley-Davidson - Iron City Motorcycles
This product is fulfilled by Iron City Motorcycles, Leeds' authorised Harley-Davidson® dealer, serving the UK with a full range of Genuine Motorclothes®, dealer merchandise, and official Harley-Davidson parts & accessories — available for UK and international delivery.
From OEM Parts to retro lifestyle wear to aftermarket stockits we have what you need to keep you riding all year round.
Use our official OEM parts finder to browse our full Genuine Harley-Davidson® Parts and our associated approved aftermarket catalogues.