1958 Hawkstone SA

[David Muir]

Hi,
Have a rolling chassis for the above and am going to fit a Triumph engine. Looking at sprocket alignment issues, the clearance in the swinging arm /wheel/tyre areas is marginal .....is this correct? [closed end of swinging arm = ~4.25 ", open end= ~6.75"]
Can someone look and measure their machine for me?

the rear tyre is a 4.00 X 18.......would it have been a narrower tyre?

Should this age of bike have paddle hubs (it does)?

what size of rear wheel sprocket would this machine have had as standard?

thanks

[Stuart Baskill]

Hi,
Have a rolling chassis for the above and am going to fit a Triumph engine. Looking at sprocket alignment issues, the clearance in the swinging arm /wheel/tyre areas is marginal .....is this correct? [closed end of swinging arm = ~4.25 ", open end= ~6.75"]
Can someone look and measure their machine for me?

the rear tyre is a 4.00 X 18.......would it have been a narrower tyre?

Should this age of bike have paddle hubs (it does)?

what size of rear wheel sprocket would this machine have had as standard?

thanks

Please send me a personal message with your frame number and I can give you more info.Include your Email address as I am trying to list all surviving 25SA bikes. Thanks Stuart