Tall Gearing

[Slymo]

Got the seat back from the upholsterers and took the Super Rocket for an illegal tour of the neighbourhood. It goes very nicely and I am getting used to the considerable extra weight from my bitsa RE Bullet and the B44SS that I recently sold. What was noteable was the very tall gearing. It’s not out of order but there will certainly be some clutch work to do.

[duTch]

 What tranny are you running?

 RRT2 will do that in 1st & 2nd, 3rd is same all round, so the gap between 2 & 3 is closer and good for mountain windies

[Slymo]

I’ll have to check it out. I assumed it was a standard box for the SR whatever that is. Where do the identification numbers find themselves?

[beezermacc]

A standard box will have 'STD' stamped on the inner cover just to the right of the clutch actuating lever, clearly visible.  If it's got anything different there is a BSA gearbox ratios data sheet  which tells you what internal gearing the various boxes have. Quite a few people prefer tall gearing and achieve this by fitting large engine and / or gearbox sprockets. It might be worth checking these too.

[Slymo]

I’ve put the sprockets as per the parts book for the 1958 Super Rocket which are a lot taller than the ones it came with. The primary sprocket is 21 teeth and the gearbox 19 which were 18 and 17 when I got it which I presume was a set up for a chair, either that or towing a caravan.

[Slymo]

It appears to be a standard box although Barry was obviously a little hung over when he put the letter punches to it

[Bsareg]

They're nearly all like that sir.....