Search found 2684 matches

by Samuel D
15 May 2019, 8:50pm
Forum: Cycling Goods & Services - Your Reviews
Topic: Spa Cycles (Harrogate)
Replies: 567
Views: 332567

Re: Spa Cycles (Harrogate)

So you’ve told us again and again and again and again in this “pathetic” thread that you keep coming back to, wearwell. (I probably missed some.) What are you hoping to achieve with the repetition? We noted your message the first time.
by Samuel D
15 May 2019, 9:35am
Forum: Health and fitness
Topic: Training Question - FTP/fatigue
Replies: 12
Views: 818

Re: Training Question - FTP/fatigue

As althebike explained, there’s no simple answer. Everyone responds differently to a block of hard training. The effect of fatigue on FTP differs too. And if you measure the FTP drop in watts as you’re doing (40–50 W) rather than per cent, then of course it also depends on your absolute FTP. 50 W wo...
by Samuel D
14 May 2019, 2:44pm
Forum: Bikes & Bits – Technical section
Topic: Lubricants for ratchet mechanisms
Replies: 38
Views: 1484

Re: Lubricants for ratchet mechanisms

I think I prefer the suggestion of Duck Oil to VCI paper. Most of these tools are stored in a cupboard built into the corner outside wall of my bedroom. Not keen on deliberate fumes. The 14 mm and 15 mm sockets are 19.65 mm and 20.75 mm wide respectively, to the nearest 1/20th of a millimetre. Can w...
by Samuel D
14 May 2019, 12:12pm
Forum: Bikes & Bits – Technical section
Topic: Help me reduce weight of my Topstone for not much money!
Replies: 26
Views: 1126

Re: Help me reduce weight of my Topstone for not much money!

Tyres. Not only will you save weight, but more importantly, you have the potential to greatly reduce rolling resistance. This matters a lot more than weight for going fast. How wide are the rims? Changing the square-taper bottom bracket to another sort would indeed require new cranks. That would be ...
by Samuel D
14 May 2019, 12:06pm
Forum: Bikes & Bits – Technical section
Topic: Difference shimano SP40/SP41 gear outers?
Replies: 10
Views: 402

Re: Difference shimano SP40/SP41 gear outers?

Shimano also makes (or buys in, presumably) its own “special grease” for gear cables . A bit cheaper from the Germans, maybe. It’s white, and a colourless fluid separates from it in storage. I shake the tub hard to remix it before use. I bought a roll of 10 metres of SP41 cable housing from Wiggle a...
by Samuel D
13 May 2019, 6:30pm
Forum: Bikes & Bits – Technical section
Topic: Lubricants for ratchet mechanisms
Replies: 38
Views: 1484

Re: Lubricants for ratchet mechanisms

Not sure if you’ll still see this ad with its minging photos and dire description (“Facom” not mentioned, “cliquet” (ratchet) not mentioned, drive size not mentioned, no model numbers, not even a description of the contents beyond “douilles” (sockets)). I managed to decipher what I was looking at: a...
by Samuel D
12 May 2019, 9:03am
Forum: Bikes & Bits – Technical section
Topic: Lubricants for ratchet mechanisms
Replies: 38
Views: 1484

Re: Lubricants for ratchet mechanisms

One downside to the facom ratchet design is that it isn't compatible with a pushbutton socket release. True. A problem with oily hands. One of the oddball Facom tools I own is a 245.J2A wad punch set. How do you store tools like these (and socket sets and much else) without having them rust? Libera...
by Samuel D
11 May 2019, 11:39pm
Forum: Bikes & Bits – Technical section
Topic: New frame. Steep seat angle. Unrideable.
Replies: 79
Views: 3659

Re: New frame. Steep seat angle. Unrideable.

I say expertise sincerely as the company was not very charitable about forum users when I mentioned that I'd consulted them - but I recognise and appreciate the wealth of knowledge and experience on forums such as this. Lurking in this space is hundreds of years of experience in the industry, count...
by Samuel D
11 May 2019, 11:10pm
Forum: Bikes & Bits – Technical section
Topic: Lubricants for ratchet mechanisms
Replies: 38
Views: 1484

Re: Lubricants for ratchet mechanisms

Yes, that’s the one I have. I might try a few winds of thread-seal tape instead of thread-locking fluid when I reassemble it the next time. In reading up on these tools recently I learned that there is a trend to higher tooth counts to reduce the swing of the handle needed to catch the next tooth in...
by Samuel D
11 May 2019, 10:08pm
Forum: Bikes & Bits – Technical section
Topic: RIP David Gordon Wilson (author of 'Cycling Science')
Replies: 3
Views: 263

Re: RIP David Gordon Wilson (author of 'Cycling Science')

Sad to hear that although he was getting to the age where the news isn’t a huge shock. There’s a man who made a dent in the universe! Some of his accomplishments are listed in this obituary . Perhaps the most intriguing one is that he finished a fourth edition of Bicycling Science days before his de...
by Samuel D
11 May 2019, 12:47pm
Forum: Bikes & Bits – Technical section
Topic: Lubricants for ratchet mechanisms
Replies: 38
Views: 1484

Re: Lubricants for ratchet mechanisms

It’s not a torque wrench, tim-b. Do you mean ask them how they lubricate ratchets anyway? Torque wrenches often have ratchets of course (though they shouldn’t affect torque measurement). The posts by Adam.C here pretty much agree with Brucey. Adam.C says elsewhere that he’s a mechanical engineer in ...
by Samuel D
10 May 2019, 10:37pm
Forum: Bikes & Bits – Technical section
Topic: shimano brake compatibility
Replies: 4
Views: 292

Re: shimano brake compatibility

They work, but because the new levers pull a little more cable, they pull it with a little less force. No big deal and Shimano permits the combination. (The vice-versa – New Super SLR callipers with Super SLR levers – is not permitted because Shimano is worried that the lever will bottom out on the ...
by Samuel D
10 May 2019, 10:28pm
Forum: Bikes & Bits – Technical section
Topic: Lubricants for ratchet mechanisms
Replies: 38
Views: 1484

Re: Lubricants for ratchet mechanisms

I found a video by Facom on this topic, which also shows the sort of round-head ratchet mechanism I’m talking about. At 1:30 a large blob of “grease with graphite” is applied where the mechanism slides. That’s more grease than I’d be comfortable putting so close to the teeth. However, nothing is app...
by Samuel D
10 May 2019, 3:33pm
Forum: Bikes & Bits – Technical section
Topic: New frame. Steep seat angle. Unrideable.
Replies: 79
Views: 3659

Re: New frame. Steep seat angle. Unrideable.

DOs: 1. Beg for every detail of the geometry before ordering, even if that means half a dozen frustrating emails and three telephone calls to the harried, customer-loathing, barely literate builder (who may be a master with the torch). 2. … DON’Ts: 1. Buy a frame from an old-school British builder ...
by Samuel D
10 May 2019, 2:54pm
Forum: Bikes & Bits – Technical section
Topic: Crank Length - formula?
Replies: 22
Views: 744

Re: Crank Length - formula?

170 mm is common but not universal. However, nearly universal are cranks between about 165 mm and 180 mm, which is a smaller range than that of human height or leg length. With a few exceptions, people seem to get along fine with that just as they get along fine with one size of step height on stair...