Notice: SPRING BREAK - REDUCED SERVICE 18 SEPT–9 OCT 2026. Orders are still being processed – dispatch may be delayed - phones will be unattended. Normal service resumes 9 October 2026.
$0.00 0

Cart

No products in the cart.

British Mortorcyle Parts - NZ & Australia
British Motorcycle Parts specialises in quality parts and accessories for pre‑1987 classic British motorcycles, with a focus on Triumph, BSA and Norton. We stock trusted brands including Amal, Kibblewhite (KPMI), Hepolite, Hagon, Dunlop and Morris Oil.

Please note: We do not operate a physical retail store, we are an online-only web-store.

57-4900 Layshaft Assy – Inc. 4th 5th Gears 5 Speed

$448.40 NZ

Out of stock

This product is currently out of stock. Please contact us for inquiries.

57-4900 Layshaft Assembly – Inc. 4th & 5th Gears – 5 Speed

Layshaft Assembly for Triumph 5 Speed models. Comes with 4th & 5th Gears.

MADE IN ENGLAND

OEM: 57-4900

 

Note: 57-4900 replaces the earlier 57-4383 Layshaft High Gear that was used in the very early 5 Speed gearboxes. (The later Layshaft 5th Gear (57-4791) is longer so the 4th Gear is required also when replacing 57-4383.)

 

© 2026 British Motorcycle Parts Ltd - All Rights Reserved | Terms & Privacy | My Account

"*" indicates required fields

Name*
Please let us know what's on your mind. Have a question for us? Ask away. Let us know the product you are wanting information on.