Search found 24 matches

by SRV
6 Aug 2020, 12:50pm
Forum: Bikes & Bits – Technical section
Topic: Sunrace Indexed R30 7 Speed Downtube Shifters
Replies: 12
Views: 452

Sunrace Indexed R30 7 Speed Downtube Shifters

I've recently fitted these shifters. The lhs friction shifter is fine. On the rhs if I go up the gears the change is smooth and accurate. However, on changing down, the shifter overshifts before clicking and then settles back in the selected gear. This overshift is annoying as it often engages the n...
by SRV
10 Feb 2020, 5:40pm
Forum: Bikes & Bits – Technical section
Topic: Unusual Sachs Front Hub
Replies: 2
Views: 299

Unusual Sachs Front Hub

I have a Sachs qr front hub which uses 1/4" balls (that's why I think it unusual) . The cones (to which are attached flanges that rotate in recesses in the hub, if you see what I mean), are badly pitted. I believe the thread is 9mm. On the central tubular part of the hub is printed, NOT embosse...
by SRV
5 Feb 2020, 6:02pm
Forum: Does anyone know … ?
Topic: Brucey
Replies: 35
Views: 2601

Brucey

Does anyone know why Brucey, a veritable fount of knowledge, doesn't publish a book, entitled something like "All I Know About Bicycles (But You May Not)"? I for one would buy a copy. He has the style to make it entertaining and the ability to fill many a cycling lacuna. Dare I say it, but...
by SRV
24 Jan 2020, 10:16am
Forum: Bikes & Bits – Technical section
Topic: Cleaning galvanised spokes
Replies: 9
Views: 582

Re: Cleaning galvanised spokes

Thanks everybody.
by SRV
22 Jan 2020, 1:05pm
Forum: Bikes & Bits – Technical section
Topic: Cleaning galvanised spokes
Replies: 9
Views: 582

Cleaning galvanised spokes

I have some wheels with galvanised spokes which are grey and furry but not rusty. Now l know that they're not meant to be shiny, but is there any way to tidy them up without damaging the galvanised surface? Ta.
by SRV
22 Oct 2019, 12:26pm
Forum: Does anyone know … ?
Topic: Unusual Raleigh Record Sprint frame number?
Replies: 4
Views: 654

Re: Unusual Raleigh Record Sprint frame number?

I forgot to mention that the rear dropouts have an old of 120mm as opposed to the usual 126mm. I haven't checked the frame alignment, so this could be a result of damage/impact.
by SRV
22 Oct 2019, 12:04pm
Forum: Does anyone know … ?
Topic: Unusual Raleigh Record Sprint frame number?
Replies: 4
Views: 654

Unusual Raleigh Record Sprint frame number?

I've just bought what I think is a Raleigh Record Sprint aero frameset. It has been overpainted twice, so all transfers/decals have been obscured. The frame number is NM300050 indicating that it was built in September 1983, I believe (there appear to be only 6 digits rather than the usual 7), and it...
by SRV
3 Jul 2019, 11:43pm
Forum: Bikes & Bits – Technical section
Topic: Modifying 1/8" Sturmey Archer sprockets for use with derailleurs
Replies: 3
Views: 3208

Re: Modifying 1/8" Sturmey Archer sprockets for use with derailleurs

Thanks Brucey. That was very interesting. I was considering going down the 3/32" route but believed that it was possible with 1/8". The facts that two dished SA sprockets back to back give an almost perfect clearance AND need no spacers and the flexibility and narrowness of the SRAM Pc-1 c...
by SRV
3 Jul 2019, 2:52pm
Forum: Bikes & Bits – Technical section
Topic: Modifying 1/8" Sturmey Archer sprockets for use with derailleurs
Replies: 3
Views: 3208

Modifying 1/8" Sturmey Archer sprockets for use with derailleurs

This is my first post. I have just finished rebuilding an old Claud Butler Challenge. It now has an AW hub with a 21 and a 24 tooth 1/8" SA sprocket and a Huret Svelto derailleur. I have two problems: the first being the reluctance of the chain to grab the larger sprocket and the second being i...