SRM Cush Drive Nut – BSA A7/A10/B31/B33/Goldstar 1956-63

Part Number : 42-0071/SRM Categories: , ,
(2 customer reviews)

£ 27.50 +VAT if applicable

SRM Improved Cush Drive Nut

In stock

5.00 out of 5
Part Number : 42-0071/SRM Categories: , ,

Upgraded Engine Cush Drive Nut

Suitable for Swinging Arm Model BSA A7/A10 & Rocket Goldstar 1956-63 & BSA B31/B33 1956 Plus Goldstar 1956 Models

Sick of having your cush drive nut come loose?

SRM have the answer ! Our new cush drive nut is made as BSA should have done it in the first place, this nut must be torqued to 65 foot lbs. This is not possible with a C spanner!! but with a hex head, you can now use a torque wrench to get it right!

Replaces BSA Part Number 42-0071

2 reviews for SRM Cush Drive Nut – BSA A7/A10/B31/B33/Goldstar 1956-63

  1. Guest (verified owner)

    I purchased the bsa Cush drive nut for my RGS some time ago. The quality was excellent well machined with a smart finish. I was a little concerned due to the lack of cut outs normally on the std BSA nut into which the lock washer is bent to secure the nut. The hexagon nut on the SRM nut easily enables a torque of 65 ft/lbs to be applied and with with a small applicacation of locktight has proved ample. Due to the success of the SRM nut I purchased a 2nd not for my Gold Star. Unfortunately it fowled the outer chaincase cover. The nut was not designed for the Gold Star which has different dimensions to the BSA twin crankshaft.

  2. Guest (verified owner)

    I have requested the size of socket to fit this Cush Drive nut but you haven’t replied so when you do l will fill out this form

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