Search found 135 matches

by NickJP
17 Oct 2019, 6:14am
Forum: Bikes & Bits – Technical section
Topic: Shimano chainsets and chainrings
Replies: 15
Views: 548

Re: Shimano chainsets and chainrings

I've seen some Shimano hollow crank failures, where either the bonding of the two parts that make up the hollow crank has separated, or the cranks break near where the crankarm and spider meet. There's an extensive thread about it on the Weightweenies forum: https://weightweenies.starbike.com/forum/...
by NickJP
17 Oct 2019, 4:14am
Forum: Bikes & Bits – Technical section
Topic: Which bike?
Replies: 13
Views: 412

Re: Which bike?

My wife likes flat bars on her road bikes. I had a look at a couple of complete flat bar road bikes in local bike shops, but they all come with the steerer already cut too short to get the bars high enough for her liking - she likes to sit pretty upright or she gets a sore back on long rides, so I b...
by NickJP
15 Oct 2019, 3:41am
Forum: Bikes & Bits – Technical section
Topic: 10s chain cleaning - once more around the buoy
Replies: 10
Views: 460

Re: 10s chain cleaning - once more around the buoy

Taking the chain off takes all of a minute. Putting it back on takes just as long. But why bother? It's quicker and more thorough. No need to change solvent three times. But if you ain't changing the bath of whatever you are cleaning the chain in, you're not getting it particularly clean. Small abr...
by NickJP
15 Oct 2019, 12:07am
Forum: Bikes & Bits – Technical section
Topic: Frame "prepping" - maybe daft question
Replies: 35
Views: 971

Re: Frame "prepping" - maybe daft question

That's pretty standard for a factory-built frame. Only if I'd ordered a custom frame from a custom framebuilder would I expect that they should have done the frame prepping before sending the frame off. And even there it sometimes doesn't get done - here's an image I took of the BB shell of a very e...
by NickJP
14 Oct 2019, 11:41am
Forum: Bikes & Bits – Technical section
Topic: 10s chain cleaning - once more around the buoy
Replies: 10
Views: 460

Re: 10s chain cleaning - once more around the buoy

Eyebrox wrote:Taking the chain off takes all of a minute. Putting it back on takes just as long.

But why bother?
by NickJP
14 Oct 2019, 4:00am
Forum: Bikes & Bits – Technical section
Topic: 10s chain cleaning - once more around the buoy
Replies: 10
Views: 460

Re: 10s chain cleaning - once more around the buoy

Removing chains for cleaning is too much stuffing around. I just use one of the Park cyclone cleaners that clamp onto the lower run of the chain. Three changes of solvent (usually mineral turps), rotating the cranks about a dozen times each time, clean the chainring and cassette teeth with a brush, ...
by NickJP
11 Oct 2019, 1:54am
Forum: Bikes & Bits – Technical section
Topic: Broken Spoke
Replies: 12
Views: 626

Re: Broken Spoke

As you screw the nipple and the slack goes out of the new spoke, pluck it with a thumbnail near the nipple. It will ring like a guitar string: the greater the tension, the higher the tone. Do the same to adjacent spokes on the same side of the wheel. That will give you a reference point to get the ...
by NickJP
8 Oct 2019, 2:57am
Forum: Bikes & Bits – Technical section
Topic: 3 in 1 Oil
Replies: 18
Views: 875

Re: 3 in 1 Oil

If you're after something cheap that works, try chainsaw cutter bar oil. You should be able to buy 1L of it for considerably less than a bike shop will charge for 100mL of chain lubricant. I bought a litre of cutter bar oil a long time ago for use on bike chains, and I haven't yet got tp the end of ...
by NickJP
6 Oct 2019, 8:07am
Forum: Bikes & Bits – Technical section
Topic: Computers
Replies: 9
Views: 414

Re: Computers

I have an IKU Cyclotronic purchased in 1982 that is still functioning. It's primitive and heavy, but has never hiccuped, and is still on the original battery, as the sensor ring and pickup coil recharge the battery as well as providing the data.
by NickJP
5 Oct 2019, 4:46am
Forum: Bikes & Bits – Technical section
Topic: 1-1/8" headsets with split crown race?
Replies: 7
Views: 247

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

I'm looking for a standard external cup 1-1/8" headset that uses a split crown race, but when I look at either web merchants websites or manufacturers websites, I can't see information on whether a particular headset has such a race. The few local bike shops I have are pretty useless for parts....
by NickJP
4 Oct 2019, 11:55am
Forum: Bikes & Bits – Technical section
Topic: Anyone using an 11-speed 11-42t (or similar) with a triple chainset?
Replies: 64
Views: 2471

Re: Anyone using an 11-speed 11-42t (or similar) with a triple chainset?

The SunRace MS8 in an 11-36t will fit on the old hubs. I quite like the spacing on those since they start with 11-12-13t. The 11-speed Shimano CS-HG700 11-34t starts off with 11-13 sprockets so it has that awful gap between the 2 smallest sprockets! Having used both those cassettes, my opinion is t...
by NickJP
1 Oct 2019, 12:35am
Forum: Bikes & Bits – Technical section
Topic: Anyone using an 11-speed 11-42t (or similar) with a triple chainset?
Replies: 64
Views: 2471

Re: Anyone using an 11-speed 11-42t (or similar) with a triple chainset?

My touring bike with Rohloff hub, 38t chainring, and 17t sprocket, has a low gear of 16.9". I've been quite thankful for that a few times when touring in Switzerland, where I went up several climbs with average gradients over 10% and max gradients over 20%. I carry most of my touring load in fr...
by NickJP
28 Sep 2019, 9:35am
Forum: Touring & Expedition
Topic: Alpine lake tour suggestions
Replies: 7
Views: 683

Re: Alpine lake tour suggestions

You could ride part of the Rhone cycle route. Details of the whole route here: https://en.viarhona.com/ . We rode the section between Geneva and Avignon a few years ago as part of a longer tour across to the Pyrenees. For something with more geographic variation, Switzerland has a national cycle rou...
by NickJP
26 Sep 2019, 9:27pm
Forum: Bikes & Bits – Technical section
Topic: What determines what speed a crankset is?
Replies: 6
Views: 444

Re: What determines what speed a crankset is?

What determines it? The manufacturer surely. They slap the label on. What's the difference? Chain rings, tabs, chainline. Some or all of these. Are they in anyway interchangeable? I suspect that this may be the root of the question. Answer, maybe and in some circumstances. Too many variables to be ...
by NickJP
26 Sep 2019, 8:00am
Forum: Bikes & Bits – Technical section
Topic: Will it work? 11-Speed MTB Shifter+ 11-Speed Road Rear Mech + Cassette?
Replies: 7
Views: 275

Re: Will it work? 11-Speed MTB Shifter+ 11-Speed Road Rear Mech + Cassette?

A road read hub is needed as well, it could get costly. Then again there's that 11-speed 11-34t HG-700 that arguably fits the old 8/9/10 freehub body - as long as the spacing on the cassette is the same as MTB, that might be one way of doing it, without needing a rear hub. I can confirm that the HG...