Search found 1130 matches

by Bez
12 Oct 2019, 6:39pm
Forum: For Sale - bits of bikes, etc.
Topic: Pompino frame, wheels, handlebars - lots of stuff for sale
Replies: 3
Views: 345

Re: Pompino frame, wheels, handlebars - lots of stuff for sale

Would you sell the 185mm rotor on its own for maybe £5 or so posted?
by Bez
11 Oct 2019, 12:39pm
Forum: Bikes & Bits – Technical section
Topic: What Not To Make Bike Frames Out Of
Replies: 35
Views: 999

Re: What Not To Make Bike Frames Out Of

£5 says someone mentions carbon fibre within the first page of replies ;)

Can I go with caesium? You’ll need good mudguards.
by Bez
8 Oct 2019, 12:20pm
Forum: Does anyone know … ?
Topic: Bike frame price increase after order placed and paid for legal?
Replies: 36
Views: 1569

Re: Bike frame price increase after order placed and paid for legal?

spread the word about this unscrupulous company, sticking to the facts. The facts appear to be that their terms and conditions are both legal and commonplace, and that they have done nothing untoward in this case. So, if you were “sticking to the facts”, on what basis would you “spread the word abo...
by Bez
7 Oct 2019, 3:45pm
Forum: Bikes & Bits – Technical section
Topic: Changing wheel size
Replies: 9
Views: 406

Re: Changing wheel size

I believe that the next standard 700c width increment above 40mm is 47mm, perhaps you have to go to 650’s to get the required clearance but I don’t believe that 650 tyres are a common size whilst 700c’s are widely available. Plenty of 42 and 45mm tyres in 700c, along with a few stragglers in betwee...
by Bez
7 Oct 2019, 2:35pm
Forum: Bikes & Bits – Technical section
Topic: Changing wheel size
Replies: 9
Views: 406

Re: Changing wheel size

To an extent, yes. My Genesis Vapour is sized for 38mm tyres on a 700c wheel. The diameter of a 650b wheel would allow a wider tyre, but the other area of constraint would be the bulge between the seat stays as Carlton green says. Looking at my current bike when it has 38s fitted, I doubt I would b...
by Bez
7 Oct 2019, 1:42pm
Forum: Bikes & Bits – Technical section
Topic: Changing wheel size
Replies: 9
Views: 406

Re: Changing wheel size

I don’t know what the relative rolling diameters of both sets of tyres are but I’d be surprised if the bottom bracket didn’t sit a little lower with the new tyres - it’s probably not significant and circa 15 mm. Depends what tyres you use of course, but the design is underpinned by the principle of...
by Bez
7 Oct 2019, 12:26pm
Forum: Does anyone know … ?
Topic: Another mapping app request
Replies: 10
Views: 420

Re: Another mapping app request

mjr wrote:
Sweep wrote:
velorog wrote:In the UK I am sufficiently familiar with the roads to be able to memorize the route .

You must have a brain - or memory capacity - the size of a planet.

Or just a memory that remembers shapes (such as junction layouts) easily.


Or just ride short routes ;)
by Bez
7 Oct 2019, 7:14am
Forum: Does anyone know … ?
Topic: Another mapping app request
Replies: 10
Views: 420

Re: Another mapping app request

I’ve not used Android for a few years now but I used to sometimes use My Trails by Frogsparks. It has a bunch of options which let you reduce the battery usage. Back in 2012 I used it on a Sony Xperia Active for navigating and recording a 36-hour ride, during which I had to recharge it once from an ...
by Bez
5 Oct 2019, 8:15am
Forum: Bikes & Bits – Technical section
Topic: 1-1/8" headsets with split crown race?
Replies: 7
Views: 248

Re: 1-1/8" headsets with split crown race?

KM2 wrote:The split race and sealed bearing must match in angle, otherwise they won’t marry together properly.


But assuming you buy a headset and don’t then start swapping parts with other headsets, that won’t be an issue.
by Bez
5 Oct 2019, 7:50am
Forum: Bikes & Bits – Technical section
Topic: 1-1/8" headsets with split crown race?
Replies: 7
Views: 248

Re: 1-1/8" headsets with split crown race?

We don't know what you mean. Well, *you* might not ;) It’s not just integrated headsets that come with split races (they’re not races, but everyone calls them races nonetheless); that component is basically independent of headset type anyway. Some headsets do come with split races but it’s hard to ...
by Bez
4 Oct 2019, 9:50pm
Forum: Bikes & Bits – Technical section
Topic: "Gusset" under downtube
Replies: 67
Views: 2018

Re: "Gusset" under downtube

I wouldn't remove it. It's been designed to be there, and an open end is common because a closed gusset creates a stress riser which can eventually cause the tube to crease. Open gussets do tend to harbour a little rust, yes. But if you want to avoid that then, as above, rather than file the gusset ...
by Bez
4 Oct 2019, 9:33pm
Forum: Does anyone know … ?
Topic: Bike frame price increase after order placed and paid for legal?
Replies: 36
Views: 1569

Re: Bike frame price increase after order placed and paid for legal?

I would get a refund, buy from elsewhere then send them a demand for the additional cost you have had to pay to obtain the frame if above £800. Whatever the contractual status beforehand, that'd be a futile demand. Still… news to me, but the pertinent bit from the CAB site: Depending on the company...
by Bez
4 Oct 2019, 4:28pm
Forum: Does anyone know … ?
Topic: Bike frame price increase after order placed and paid for legal?
Replies: 36
Views: 1569

Re: Bike frame price increase after order placed and paid for legal?

Trikeyohreilly wrote:They say Surly have put the price up to £999.


That's their problem. They sold you one for £800. If they took your money then the contract exists and you've fulfilled your obligations under it.

(IANAL)
by Bez
22 Sep 2019, 1:18pm
Forum: Fun & Games
Topic: When Pi doesn't matter...
Replies: 10
Views: 367

Re: When Pi doesn't matter...

Yeah, of course, it’s a regular polygon. But what I meant was that whatever the OP’s measured, it’s probably not the PCD.
by Bez
22 Sep 2019, 10:56am
Forum: Fun & Games
Topic: When Pi doesn't matter...
Replies: 10
Views: 367

Re: When Pi doesn't matter...

Let's take one of your examples, the 24t sprocket. 97.7mm is about 3.85". 24t is 24 1/2" links, so the circumference is (approximately*) 12". 12" divided by 3.85" is… ;) * NB for bonus detail, you need to measure the pitch circle diameter (PCD), and that's not quite what you...