Vintage Raleigh gearing advice
I just picked a Raleigh Carlton Grand Prix (either a Jul-1970 or a Jul-9180 according to the serial number).
I've cleaned it, put new cables on it, changed the seat and put some new tyres, brake blocks & bar tape on it. It rides a treat. Bottom bracket is good. Went out for a test ride of about 10 miles in the Yorkshire Dales and decided that, as lovely as it is, I could do with a little more help in the gears dept.
It has a Suntour Perfect 5 speed (14-24t) freewheel on it and 52/42 chainrings. The rear derailleur is a Raleigh badged Huret item. The RD has spring settings for 24 and 28 teeth. The shifters are on the down tube and not indexed.
I am thinking I could change the front inner chainring to a 39 and the rear cassette to a 7-speed 13-28t equivalent and I would get a broader gear range and smaller steps.
i would need to measure dropouts for clearance but does anyone think there is a no-no in that set up please ?
Thanks in advance, DBo.
I've cleaned it, put new cables on it, changed the seat and put some new tyres, brake blocks & bar tape on it. It rides a treat. Bottom bracket is good. Went out for a test ride of about 10 miles in the Yorkshire Dales and decided that, as lovely as it is, I could do with a little more help in the gears dept.
It has a Suntour Perfect 5 speed (14-24t) freewheel on it and 52/42 chainrings. The rear derailleur is a Raleigh badged Huret item. The RD has spring settings for 24 and 28 teeth. The shifters are on the down tube and not indexed.
I am thinking I could change the front inner chainring to a 39 and the rear cassette to a 7-speed 13-28t equivalent and I would get a broader gear range and smaller steps.
i would need to measure dropouts for clearance but does anyone think there is a no-no in that set up please ?
Thanks in advance, DBo.
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Comments
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I'm doing similar on a SunSolo but planning on a 14-28 six-speed and trying to find a square taper compact crank. I'll be cold setting the dropouts.0
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Gethinceri wrote:I'll be cold setting the dropouts.
Yes, I think it will need to go from 120mm to 126mm for a 7 speed.
Good luck with yours.0
