Search found 251 matches

by NickJP
5 Jul 2020, 12:49am
Forum: Bikes & Bits – Technical section
Topic: Choosing a different 9 speed cassette - options?
Replies: 5
Views: 272

Re: Choosing a different 9 speed cassette - options?

When I wanted an 11-36 11-speed that started 11-13 rather than 11-12, I went to ZTTO to get what I wanted. They have quite an extensive range of cassettes: https://ztto.aliexpress.com/store/4424045.
by NickJP
2 Jul 2020, 12:36am
Forum: Bikes & Bits – Technical section
Topic: Carbon frames for Mamils with high handlebars.
Replies: 66
Views: 2056

Re: Carbon frames for Mamils with high handlebars.

Valbrona wrote:Can't you do a bike ride without a tin of baked beans and gas cooker?

I like farting.
by NickJP
1 Jul 2020, 12:56pm
Forum: Bikes & Bits – Technical section
Topic: Carbon frames for Mamils with high handlebars.
Replies: 66
Views: 2056

Re: Carbon frames for Mamils with high handlebars.

What frame is that by the way looks like and open mold gravel bike frame?? No, it's an Open U.P.P.E.R. frame: https://opencycle.com/up . I bought my frameset here in Australia at a substantial discount in an EOFY sale for $A4500 - looks like the frameset price in the UK is around £4k or slightly le...
by NickJP
1 Jul 2020, 5:19am
Forum: Bikes & Bits – Technical section
Topic: Carbon frames for Mamils with high handlebars.
Replies: 66
Views: 2056

Re: Carbon frames for Mamils with high handlebars.

That’s a lovely Gilles Berthoud saddle. How long have you had it for? I bought it when I put the bike together, so it's now about three years old. It's the Aravis model with what they call a cork finish. There's a nice video showing the manufacture of Berthoud saddles at https://www.youtube.com/wat...
by NickJP
30 Jun 2020, 9:41pm
Forum: Bikes & Bits – Technical section
Topic: Carbon frames for Mamils with high handlebars.
Replies: 66
Views: 2056

Re: Carbon frames for Mamils with high handlebars.

https://lh3.googleusercontent.com/ie8ZwNUi-aMZzDZyZWSnUdqz6iikpqYE94H5zDCYsTQq8s9DXPlqUxf334uuJCCOP0WdeFhudt330L82f_0YqJFoMJ3rMsAsfYeHQxOcltxPT8nJNhjTzcSzYz786vVmGHSe01zejpM=w2400 That looks like an Open Mind with a Carbon steerer tube? That brings to mind one of my other concerns about high bars o...
by NickJP
30 Jun 2020, 10:27am
Forum: Bikes & Bits – Technical section
Topic: Carbon frames for Mamils with high handlebars.
Replies: 66
Views: 2056

Re: Carbon frames for Mamils with high handlebars.

All my bikes are setup like that. It amuses me when I see the wannabes trundling around with their bars six or eight inches below the saddle because "that's how the pros do it". https://lh3.googleusercontent.com/ie8ZwNUi-aMZzDZyZWSnUdqz6iikpqYE94H5zDCYsTQq8s9DXPlqUxf334uuJCCOP0WdeFhudt330L...
by NickJP
30 Jun 2020, 10:06am
Forum: Bikes & Bits – Technical section
Topic: Self Healing Inner Tubes
Replies: 5
Views: 247

Re: Self Healing Inner Tubes

Before you inflate, rotate the wheel so the valve is at 5 o'clock or 7 o'clock, and let it sit for a few seconds so that any sealant there can drain out of the valve stem. Then you shouldn't have the problem.
by NickJP
30 Jun 2020, 9:51am
Forum: Bikes & Bits – Technical section
Topic: Lacing Saddles
Replies: 6
Views: 589

Re: Lacing Saddles

I used some fairly heavy fishing line to perform the same operation on an old Brooks Pro, with the line tied off with a bowline at one end and multiple half hitches at the other. Those knots have now held for more than 20 years without slipping: https://lh3.googleusercontent.com/Tty-ibW1Mw8FJ0WZLJnu...
by NickJP
25 Jun 2020, 1:36am
Forum: Bikes & Bits – Technical section
Topic: Spoke Tension Meters
Replies: 54
Views: 1456

Re: Spoke Tension Meters

I haven't got a tension meter, and I have no intention (in-tension?) of getting one either. Build my wheels by feel. I know when it's right, and I don't need a meter to tell me. Then your wheels are almost certainly under-tensioned. I built wheels that way for many years, and when I eventually acqu...
by NickJP
22 Jun 2020, 12:32am
Forum: Bikes & Bits – Technical section
Topic: "These headsets last forever"?
Replies: 84
Views: 2423

Re: "These headsets last forever"?

A much better indicator of acceptable preload is absence of free play in use. Regarding headset adjustment, I have sometimes wondered about the effect of temperature changes on bikes where the fork steerer and head tube are dissimilar materials with different coefficients of thermal expansion. For ...
by NickJP
21 Jun 2020, 12:05am
Forum: Bikes & Bits – Technical section
Topic: Spoke Tension Meters
Replies: 54
Views: 1456

Re: Spoke Tension Meters

I recently sent my old Wheelsmith unit back to Wheel Fanatyk for recalibration: https://www.wheelfanatyk.com/store/ws-tensiometer-recalibration/ . But absent that service, it's easy enough to make up a jig for calibrating tensiometers: https://lh3.googleusercontent.com/3YMv86_rsaQfYkTDLF5SiwoVXfzyy7...
by NickJP
18 Jun 2020, 11:34am
Forum: Bikes & Bits – Technical section
Topic: "These headsets last forever"?
Replies: 84
Views: 2423

Re: "These headsets last forever"?

The closest I've encountered to "last forever" headsets are the Stronglight needle roller headsets. I have a couple that I installed on bikes in the early 1980s, and the bearings in them still appear to be in perfect condition.
by NickJP
11 Jun 2020, 12:14pm
Forum: Bikes & Bits – Technical section
Topic: Wheel building machines
Replies: 69
Views: 1972

Re: Wheel building machines

I do agree with the use of different spokes each side of a derailleur rear wheel; however if the dish is made low enough this becomes less significant. I note that in the MTBs offset back ends are quite common now; I wonder if they will reappear in the touring world? Maybe more touring frames shoul...
by NickJP
11 Jun 2020, 11:56am
Forum: Bikes & Bits – Technical section
Topic: Shimergo - latest news
Replies: 39
Views: 1578

Re: Shimergo - latest news

Here are my numbers from a (disappointing) play with Shimergo. I fitted new Campagnolo Potenza 11-speed levers to an old 9-speed Shimano Ultegra rear derailleur & cassette. The Shimergo table suggested that it should be close enough, but it doesn't really work. I can get about 5 sprockets to en...