Search found 384 matches

by fausto99
16 Jun 2019, 9:43am
Forum: Bikes & Bits – Technical section
Topic: Last Orders for 28t, 30t & 32t 8-speed Campy Sprockets
Replies: 11
Views: 745

Re: Last Orders for 28t, 30t & 32t 8-speed Campy Sprockets

That 8 speed was on a par shifting wise to Dura Ace 11 and so far ahead of Shimano at the time. Their reluctance to design more user friendly cassettes and chainsets has cost them hundreds of millions over the years IMHO. +1 My Campag 8 speed Veloce and Shimano 8 speed STX-RC bikes shift much more ...
by fausto99
10 Jun 2019, 10:34am
Forum: Bikes & Bits – Technical section
Topic: Last Orders for 28t, 30t & 32t 8-speed Campy Sprockets
Replies: 11
Views: 745

Re: Last Orders for 28t, 30t & 32t 8-speed Campy Sprockets

NATURAL ANKLING wrote:Sorry to poor water on the idea, can we expand And the whys and wherefores for attempting to make these sprockets?

AFAIK Campagnolo only go up to 26t on an 8 speed cassette.
by fausto99
10 Jun 2019, 8:26am
Forum: Bikes & Bits – Technical section
Topic: Last Orders for 28t, 30t & 32t 8-speed Campy Sprockets
Replies: 11
Views: 745

Re: Last Orders for 28t, 30t & 32t 8-speed Campy Sprockets

I don't have the facilities to harden and temper tool steel. I'm assuming mild steel is harder wearing that al alloy chainwheels.
Do you have any better suggestions?
by fausto99
8 Jun 2019, 9:51pm
Forum: Bikes & Bits – Technical section
Topic: Last Orders for 28t, 30t & 32t 8-speed Campy Sprockets
Replies: 11
Views: 745

Last Orders for 28t, 30t & 32t 8-speed Campy Sprockets

What it says in the title.
I'm going to try to order some of these, in 2.0 mm thick mild steel, from my local waterjet cutter next week.
He quoted me £10 each a while back.

PM me if you want to add to my order.
by fausto99
8 Jun 2019, 8:52pm
Forum: Bikes & Bits – Technical section
Topic: Worth getting new bushings for MAFAC Racer
Replies: 19
Views: 689

Re: Worth getting new bushings for MAFAC Racer

Back to the question in the op title; IME bushes need to be reamed to size for a play free fit and the bosses may be undersize, tapered or even both. This means you might need bushes with an undersize hole which you have to drill and then ream. I managed to get a cheap but ok adjustable reamer from ...
by fausto99
3 Jun 2019, 5:27pm
Forum: Bikes & Bits – Technical section
Topic: Campagnolo Freehub O Ring
Replies: 3
Views: 170

Re: Campagnolo Freehub O Ring

I am still using a 97 Veloce rear hub. The O ring has become oversize but is still in one piece. I have not replaced the springs as they were not bent. I did have to replace both internal sealed bearings in the freehub and both axle cones (and balls of course). Re lubrication I'm currently using a C...
by fausto99
28 May 2019, 8:36am
Forum: Bikes & Bits – Technical section
Topic: Noisy Sturmey Archer 3sp
Replies: 122
Views: 5452

Re: Noisy Sturmey Archer 3sp

Mick F wrote:Fray Bentos pudding tin as a Special Tool. :D


Drill hole first? Eat pudding before that ? :lol:
by fausto99
20 May 2019, 12:51pm
Forum: Bikes & Bits – Technical section
Topic: 30 teeth sprocket for 8 speed Campag cassettes
Replies: 37
Views: 1192

Re: 30 teeth sprocket for 8 speed Campag cassettes

I managed to get a price from my local water jet cutter. Looks like custom sprockets will be about £10 each; going down to about £7 for larger quantities. Standard material thickness is 2.0 mm.

I will probably end up getting two of each (28 and 32 teeth). Does any one else want any?
by fausto99
9 May 2019, 8:37pm
Forum: Bikes & Bits – Technical section
Topic: 30 teeth sprocket for 8 speed Campag cassettes
Replies: 37
Views: 1192

Re: 30 teeth sprocket for 8 speed Campag cassettes

I will investigate if splines could be laser or water jet cut economically. I have drawn up a 28T and 32T sprocket with an inner hole to fit a Campagnolo 8 speed (8 spline) freehub. My local waterjet cutter did not laugh me out of court, so I intend to send them CAD files to get a quote and some id...
by fausto99
8 May 2019, 10:52am
Forum: Bikes & Bits – Technical section
Topic: 30 teeth sprocket for 8 speed Campag cassettes
Replies: 37
Views: 1192

Re: 30 teeth sprocket for 8 speed Campag cassettes

Mick F wrote:I think I'm correct in saying that there are some cassettes with the big cogs are alu.

Yes indeed. Probably the ones where the bigger sprockets are riveted onto a carrier thereby not contacting the freehub directly.
by fausto99
8 May 2019, 9:32am
Forum: Bikes & Bits – Technical section
Topic: 30 teeth sprocket for 8 speed Campag cassettes
Replies: 37
Views: 1192

Re: 30 teeth sprocket for 8 speed Campag cassettes

Sounds like a lot of faff to me! IMO, a lot easier to just replace the front chainset with a lower-geared one, so to use the current stock of cassettes with 28t sprocket? One man's faff is another man's hobby in retirement :P . It keeps me off the streets :lol: :lol: :lol: Besides, I like my Shiman...
by fausto99
8 May 2019, 9:28am
Forum: Bikes & Bits – Technical section
Topic: 30 teeth sprocket for 8 speed Campag cassettes
Replies: 37
Views: 1192

Re: 30 teeth sprocket for 8 speed Campag cassettes

Does it have to be steel? Many chainwheels have less than 30t and they are alu. Difficult bit would be the splines of course, but maybe they could be bolted or riveted to the adjacent sprockets. Don't forget that chainwheels are bolted on with big fixings. The dog-spline(?) contact on a freehub is ...
by fausto99
6 May 2019, 11:03am
Forum: Bikes & Bits – Technical section
Topic: 30 teeth sprocket for 8 speed Campag cassettes
Replies: 37
Views: 1192

Re: 30 teeth sprocket for 8 speed Campag cassettes

Following on from MickF's thread about headset spanners, I'm inclined to investigate laser or water-jet cutting of sprockets. I imagine I could get quite a few cut for the price of an IRD freewheel. Has anyone looked at this? What grade of steel would be best for a 30t rear sprocket? Bump Would any...
by fausto99
5 May 2019, 4:16pm
Forum: Bikes & Bits – Technical section
Topic: 30 teeth sprocket for 8 speed Campag cassettes
Replies: 37
Views: 1192

Re: 30 teeth sprocket for 8 speed Campag cassettes

Following on from MickF's thread about headset spanners, I'm inclined to investigate laser or water-jet cutting of sprockets. I imagine I could get quite a few cut for the price of an IRD freewheel.

Has anyone looked at this? What grade of steel would be best for a 30t rear sprocket?
by fausto99
5 May 2019, 4:03pm
Forum: Bikes & Bits – Technical section
Topic: 30 teeth sprocket for 8 speed Campag cassettes
Replies: 37
Views: 1192

Re: 30 teeth sprocket for 8 speed Campag cassettes

Have Campag MTB (Centaur) cassettes/freehubs got the same splines as Campag road components?