Search found 167 matches

by Pneumant
29 Jul 2020, 6:28pm
Forum: Bikes & Bits – Technical section
Topic: Under chain stay U brakes
Replies: 10
Views: 437

Re: Under chain stay U brakes

There ought to be a thread for spurious parts fitted to bikes by marketing departments :roll: The U brake lasted a year or two on MTBs with consumers wising up long before they were dropped. Sadly I was not one of those people and owned a 1987 MTB with a Dia Compe U Brake. This brake was perfectly p...
by Pneumant
15 Jul 2020, 7:34pm
Forum: On the road
Topic: 150,000miles?
Replies: 28
Views: 1065

Re: 150,000miles?

I think 150,000 miles when totted up over the years is impressive as this is a figure that the rest of us everyday cyclists could achieve...maybe! 8)
by Pneumant
10 Jul 2020, 3:18pm
Forum: Does anyone know … ?
Topic: Daniel Rebour; a cyclist's eye view
Replies: 51
Views: 1111

Re: Daniel Rebour; a cyclist's eye view

foxyrider wrote:
Brucey wrote:Image


i think i've still got one of these! :D


Here is mine - a Nuovo Record 8).
Truly handsome and lightweight too at 194g.
P1080077.JPG
by Pneumant
9 Jul 2020, 8:22pm
Forum: Does anyone know … ?
Topic: Daniel Rebour; a cyclist's eye view
Replies: 51
Views: 1111

Re: Daniel Rebour; a cyclist's eye view

From the back of the Rebour book:
"whereas photographs may look fine, Rebour's drawings show much more clearly how things are put together and how they work".
8)
I love the heart forging on this era Campag derailleurs, Rebour catches the beauty of these derailleurs perfectly :)
by Pneumant
9 Jul 2020, 7:43pm
Forum: Does anyone know … ?
Topic: Daniel Rebour; a cyclist's eye view
Replies: 51
Views: 1111

Re: Daniel Rebour; a cyclist's eye view

rhcyclotourisme1950.jpg This is a favourite of mine! Rebour eventually stopped drawing the wheel spokes on the bicycle illustrations - I think his illustrations look all the better for it. Rob Van Der Plas and Frank Berto co-authored the excellent book mentioned upthread, they saw that Rebour had b...
by Pneumant
29 Jun 2020, 4:25pm
Forum: Bikes & Bits – Technical section
Topic: BB lock rings
Replies: 29
Views: 754

Re: BB lock rings

+1 ^^ As already mentioned this unit does not use cups! This unit is a snug fit in the BB shell, support the frame and knock it out. These BB's were expensive back in the day, all alloy construction and hollow precision axle. Think better than Record / Dura Ace / Superbe Pro quality. As previously m...
by Pneumant
27 Jun 2020, 8:09pm
Forum: Bikes & Bits – Technical section
Topic: BB lock rings
Replies: 29
Views: 754

Re: BB lock rings

You can use a soldering iron instead - rest the tip on the ring for 15-mins or so.
Yes a Shimano crank will go on too far and be ruined.
by Pneumant
27 Jun 2020, 8:06pm
Forum: Bikes & Bits – Technical section
Topic: BB lock rings
Replies: 29
Views: 754

Re: BB lock rings

Could also be an earlier Mavic 600 (I have one of these somewhere) which does have cups!
Take some pics please........
by Pneumant
27 Jun 2020, 8:00pm
Forum: Bikes & Bits – Technical section
Topic: BB lock rings
Replies: 29
Views: 754

Re: BB lock rings

That is a Mavic 610, aluminium rings, worth preserving as rebuildable and compatible with 90's Campag. To fit one of these BB's the bottom bracket shell has to be bevelled as the Mavic BB does not rely on the shell threads at all. The bevelling process does not prevent the future use of a std BB and...
by Pneumant
27 Jun 2020, 7:20pm
Forum: Bikes & Bits – Technical section
Topic: BB lock rings
Replies: 29
Views: 754

Re: BB lock rings

+1 Pics would help! What make is the BB and what are the cups made out of - steel or aluminium? I would firstly try some heat using a heat gun for a minute or so followed by a blast of penetrating oil. Repeat a few times and try drifting off again. It helps to gently drift the wrong way to start as ...
by Pneumant
27 Jun 2020, 7:03pm
Forum: Bikes & Bits – Technical section
Topic: Gear problems..
Replies: 15
Views: 463

Re: Gear problems..

Often wondered why these Shimano gruppos have dished chainwheels, what is the point :?: I think the point is to allow larger intervals between the chainrings, without the chain catching on the big ring when running small-small. Simply spacing the chainrings further apart does this too, but leaves a...
by Pneumant
27 Jun 2020, 4:00pm
Forum: Bikes & Bits – Technical section
Topic: Gear problems..
Replies: 15
Views: 463

Re: Gear problems..

Ok thanks, bike has just been cleaned so will have run through the gears on the stand to see that. Learn something new everyday!
by Pneumant
27 Jun 2020, 3:24pm
Forum: Bikes & Bits – Technical section
Topic: Gear problems..
Replies: 15
Views: 463

Re: Gear problems..

I've a road bike with full 105 5600 10-speed. On the 52 big ring I won't take it lower than 4th as the chain angle is quite angled. On the 39 small ring I wont take it higher than 6th. This bike is getting on a bit now and the decent 105 cassettes are no longer available so I do nurse the transmissi...
by Pneumant
25 Jun 2020, 7:42pm
Forum: Bikes & Bits – Technical section
Topic: BB fitting and chain alignment
Replies: 4
Views: 201

Re: BB fitting and chain alignment

Hi, As is you may have issues with water ingress and a possible future seized BB with those exposed threads. You could either butcher the remains of the chainguard to remove and refit the spacer part you need or make your own spacer. I would choose the former option.
by Pneumant
19 Jun 2020, 6:24pm
Forum: Bikes & Bits – Technical section
Topic: Dynamo Rear Light with a power socket?
Replies: 36
Views: 823

Re: Dynamo Rear Light with a power socket?

A weatherproof connector is the answer. Company linked below are very helpful btw:
https://www.vehiclewiringproducts.co.uk ... connectors