The BSA A7-A10 Forum

Technical (Descriptive Topic Titles - Stay on Topic) => A7 & A10 Engine => Topic started by: nimrod650 on 09.01. 2016 18:46

Title: large journal crank
Post by: nimrod650 on 09.01. 2016 18:46

what is  the difference between large and small journal cranks are there any numbers to tell thanks

Title: Re: large journal crank
Post by: KiwiGF on 09.01. 2016 19:42

The journal size of the big ends are significantly different (of course!). The small journal crank also has wider big end journals.

I am not sure if part or casting numbers are on the cranks but the flywheels look different as well, being bolted on differently etc.