Senior Member
Join Date: Oct 2016
Location: Cambridge UK
Posts: 852
Bikes: 1903 24 spd Sunbeam, 1927 Humber, 3 1930 Raleighs, 2 1940s Sunbeams, 2 1940s Raleighs, Rudge, 1950s Robin Hood, 1958 Claud Butler, 2 1973 Colnago Supers, Eddie Merckx, 2 1980 Holdsworth, EG Bates funny TT bike, another 6 or so 1990s bikes
Mentioned: 15 Post(s)
Tagged: 0 Thread(s)
Quoted: 331 Post(s)
Sun Tour shifters on seatpost
Originally Posted by
DQRider
I'm trying to find a nice old brass quadrant shifter for the top tube, but I'm not even sure if the cable pull is the same.
That's the first time I've ever seen a seat-tube shifter. I wonder how hard that would be to get used to. 
The tires are Fairweather Touring "Cruise" Tire, 700x38c - Cream from Velo Orange. Nicest, smoothest tires I've ever ridden on.
IGHs have a strong spring and can overwhelm most variable shifters. These Sun Tours work a 1930s derailleur and a 1946 SA 4 speed. They have a very good clutch so that they move freely but hold the position you select and don't slip.
In situ. The shift lever travel for the IGH is very short. Maybe 20 degrees of rotation selects gears 1 to 4.
Last edited by Johno59; 06-08-19 at 06:39 AM.