Samwel 4-Speed 'Close-Ratio' Transmission for 750cc Flatheads for 41-51 WL - 0218003
Description
Identical appearance to the stock 3-speed transmission. 1; 2; 3 are smaller and 4th gear is identical to OEM ratio. We all know that the power band of 45" side valve engines is not all that wide and torque not that great. The original 3-speed transmission can; especially when accelerating up-hill with a sidecar; or cruising at a certain speed; give you the feeling that you'd like an extra gear to smooth things out. Especially shifting from 1st. to 2nd. is quite large and can result in a large RPM drop that takes you outside the ideal RPM/torque range. This transmission comes with a bit smaller 1st.; 2nd. and 3rd. ''close-ratio'' gears but the 4th gear has the identical 1:1 gear ratio as the original 3-speed transmission. The only thing that will give the transformation to 4-speed away is the 4-speed shifter gate; which must be ordered separately. Transmission is fully assembled and ready to run. Just add oil after installation; invite your mother in law and take to the hills with confidence! Stock 3-speed ratios are: 1st = 2.47:1; 2nd. = 1.57:1; 3rd. = 1:1. This ''close-ratio'' 4-speed transmission ratios are: 1st. = 2.67:1; 2nd. = 2.03:1; 3rd. = 1.42:1; 4th. = 1:1. Note: A 4-speed shifter gate must be ordered separately and is available as 909605 (chrome) and 909073 (black).
Fitment
- 41-51 WL (NU)
Product Details
- Brand: Samwel
- Category: Transmission/driveline > Transmission
- Unit: 1
- Product code: 904891
Part Numbers
MCS Part Number: 904891
Manufacturer Part Number: 0218003
Will this fit my motorcycle?
This motorcycle is saved on this device.
My Garage
Loading My Garage…
Enter your UK postcode for a quick estimate before adding to your basket. Enter your postcode to check delivery.
This estimate is for the selected item and quantity on their own. Shipping for your complete order is recalculated in the basket and shown again at checkout before payment. Your full order is recalculated in the basket and confirmed at checkout.
Need help with this part?
Enter your UK postcode for a quick estimate before adding to your basket. Enter your postcode to check delivery.
This estimate is for the selected item and quantity on their own. Shipping for your complete order is recalculated in the basket and shown again at checkout before payment. Your full order is recalculated in the basket and confirmed at checkout.
30-day returns on eligible items
Our additional returns offer covers unused items when you contact us within 30 days after delivery. Your statutory rights, including for sale items, are unaffected. Read our returns policy.
Shipping information
Our stock is held at several warehouses located in the UK, Germany and The Netherlands. Our inventory management system aggregates the stock levels in all locations.
Where an item is marked as "ready to be shipped" or "in stock" it means that it is available from one of the warehouses, not necessarily in the UK. Where an item is stocked outside of the UK we will have the item(s) brought over to our UK base and will then ship it to you.
All items are shipped from the UK meaning that the price you see is the price you pay. All import duties and taxes have already been paid by us.
It normally takes 2-3 working days for goods to come in from Europe.
If you are planning on coming to our store for a specific item, please contact us first to ensure it is in UK stock to avoid a wasted journey.
Occasionally, events beyond our control may cause delays.
Returns & warranty
Contact us within 30 days after delivery to return an unused item under our additional returns offer. Conditions apply.
Free tracked UK return labels are available for qualifying parcels under 20 kg and within 61 × 46 × 46 cm.
Your statutory cancellation and faulty-goods rights are unaffected, including for sale items. Any manufacturer’s warranty is additional to those rights.
For the full conditions, refund details and how to return an item, see our returns policy. Contact sales@hogparts.co.uk for help.