Search found 63 matches

by Randy_Butternubs
1 Jan 2020, 5:37pm
Forum: Bikes & Bits – Technical section
Topic: Voyager Hypers - tubeless?
Replies: 5
Views: 349

Re: Voyager Hypers - tubeless?

I'd add that the two pairs of Hypers I've used were an extremely loose fit on the rim - to the extent that getting them to stay on while I inflated the tube a bit was a little tricky.

Even if tubed tyres could be suitable for tubless use, I'd be wary of using Hypers.
by Randy_Butternubs
22 Dec 2019, 10:45am
Forum: Bikes & Bits – Technical section
Topic: What considerations for buying a new Brompton bike
Replies: 31
Views: 1331

Re: What considerations for buying a new Brompton bike

Definitely try before you buy. You can get a test ride or there are lockers around London where you can rent them for cheap. They feel extremely weird and unstable when you get on one for the first time but I got used to it in a few minutes and really liked the handling after that. Some people don't...
by Randy_Butternubs
29 Oct 2019, 12:58am
Forum: On the road
Topic: Something new to watch out for! - suspiciously fast (motor-)bicycles
Replies: 84
Views: 11657

Re: Something new to watch out for! - suspiciously fast (motor-)bicycles

I find this thread a bit surreal. Quibbling over a few miles an hour on a 15mph bicycle while, in the real world, I'm worrying about being tailgated by lorries and skimmed by towering, 10-ton tractors towing big, spiky trailers? I wonder if the ebike detractors are aware of the motorcycle CBT? You d...
by Randy_Butternubs
15 Jul 2019, 9:41pm
Forum: Bikes & Bits – Technical section
Topic: What do you think of this multi-tool?
Replies: 19
Views: 814

Re: What do you think of this multi-tool?

You mentioned the Topeak Ratchet Rocket, which is a nice tool, but the short length of the bits means that I cannot use it to tighten the bolt securing my drop bar brake levers... You can buy generic 2" or longer bits if necessary. I have one for the 5mm hex bit as I need it for my seatpost an...
by Randy_Butternubs
9 Jul 2019, 4:08pm
Forum: Bikes & Bits – Technical section
Topic: Hanging bike by front wheel on trains?
Replies: 42
Views: 1973

Re: Hanging bike by front wheel on trains?

One thing to watch out for is impact/twisting from other bikes. Here is my Cannondale en route to Plymouth in a new "Azuma" train..there is supposed to be space for another bike!! I was really relieved no one showed up with one though..it was hard enough wrestling my bike into place..ther...
by Randy_Butternubs
17 Oct 2018, 3:48pm
Forum: Does anyone know … ?
Topic: Halfords to sell Bromptons
Replies: 50
Views: 3153

Re: Halfords to sell Bromptons

They're UK-made in part because it allows the company to keep a close eye on production and keep their trade secrets, know-how etc. close to their chests, and partly for the branding value of being able to stick a union jack on the side. The London thing I've never been quite sure of; I suppose as ...
by Randy_Butternubs
15 Jun 2018, 9:21pm
Forum: Bikes & Bits – Technical section
Topic: cheap (hand) drill that will take 8mm drill bits
Replies: 13
Views: 596

Re: cheap (hand) drill that will take 8mm drill bits

Stepped drill bits are great for thin/sheet materials. Normal bits have a tendency to take a big bite and start self feeding like a screw in thin materials. This results in a ragged, non circular hole. Even if they don't do this you often get a triangular hole if you are just enlarging an existing o...
by Randy_Butternubs
2 Jun 2018, 4:16pm
Forum: Does anyone know … ?
Topic: why Brompton forks have such low trail?
Replies: 35
Views: 1692

Re: why Brompton forks have such low trail?

Hang on a sec here. If you take the argument to extreme, the larger the diameter of the front wheel, the longer the trail? The smaller the wheel, the shorter the trail? If you had a zero diameter front wheel, you would have zero trail? ........... or am I wrong? If the wheel had 0 diameter and no o...
by Randy_Butternubs
2 Jun 2018, 2:28pm
Forum: Bikes & Bits – Technical section
Topic: Metric spanners
Replies: 14
Views: 751

Re: Metric spanners

An adjustable is handy but they often round off the flats. Not the Stanley adjustable spanner with clamp though. The clamping device is similar to that on a mole wrench and by clamping the spanner on a nut it doesn't drop off or slip. +1. That was one of the first tools I ever bought and it's alway...
by Randy_Butternubs
2 Jun 2018, 11:58am
Forum: Does anyone know … ?
Topic: why Brompton forks have such low trail?
Replies: 35
Views: 1692

Re: why Brompton forks have such low trail?

That different people interact differently with different bikes is hardly a surprise. So it's no surprise that just as you and 531colin don't get on with Brom handling, there's plenty (like me) that do. And for those that do get on with a Brom, that a Tern may be more stable is a bit of a moot poin...
by Randy_Butternubs
1 Jun 2018, 8:26pm
Forum: Does anyone know … ?
Topic: why Brompton forks have such low trail?
Replies: 35
Views: 1692

Re: why Brompton forks have such low trail?

This is an interesting blog post on the work of Jim Papadopoulos, who is also active in the comments. Papadopoulos seems to be the foremost expert on bicycle self-steering as far as I can tell. https://janheine.wordpress.com/2011/04/27/bicycle-stability-everything-works-together/ Key excerpts from J...
by Randy_Butternubs
1 Jun 2018, 7:35pm
Forum: Does anyone know … ?
Topic: why Brompton forks have such low trail?
Replies: 35
Views: 1692

Re: why Brompton forks have such low trail?

pjclinch, I'm sorry, that just reads like excuses for bad design. There are designs that it is nigh on impossible for anyone to ride consistently in a hands off position. This is not the same thing as riding a unicycle and is not a skill to be learnt (as riding a unicycle is). A bicycle that has a ...
by Randy_Butternubs
31 May 2018, 10:36pm
Forum: Does anyone know … ?
Topic: why Brompton forks have such low trail?
Replies: 35
Views: 1692

Re: why Brompton forks have such low trail?

Re: the tendancy of the wheel to fall in on itself: isn't that more a question of the slackness of the steering head angle? I found the Brompton very easy to push along by the saddle without the front wheel flopping to one side. I can't say the same of my full-size bikes. I do believe it is a funct...
by Randy_Butternubs
31 May 2018, 3:06pm
Forum: Does anyone know … ?
Topic: why Brompton forks have such low trail?
Replies: 35
Views: 1692

Re: why Brompton forks have such low trail?

The first time I rode a Brompton I found it comically unstable but I got used to it in a few minutes and started to appreciate it for weaving around cars. I didn't find it required any particular effort to hold a line but I didn't try riding without my hands. Having some weight on the front carrier ...
by Randy_Butternubs
11 May 2018, 9:36pm
Forum: Does anyone know … ?
Topic: 8.5 mile commute for a beginner cyclist?
Replies: 19
Views: 3155

Re: 8.5 mile commute for a beginner cyclist?

If you don't know how, practice puncture repair at home. There are good videos on the internet -just keep taking the tyres off and on until it's easy. It seems like a lot of people never address it and live in fear of punctures. Once you are good at it it's easy, quick and effortless* *Some tyres/ri...