Search found 53 matches

by wheel71
17 Feb 2020, 11:06am
Forum: Bikes & Bits – Technical section
Topic: How low can you go? Gears.
Replies: 68
Views: 3799

Re: How low can you go? Gears.

It does beg the question, though, of how low you can go and still have a rideable bike. What is the lowest gearing where you could expect to stay on the bike (gyroscopic action of the wheels) when climbing an extreme 1 in 4/25% gradient? For your amusement - 1 in 3, 7.5 gear inches: https://youtu.b...
by wheel71
9 Feb 2020, 4:27pm
Forum: Bikes & Bits – Technical section
Topic: How low can you go? Gears.
Replies: 68
Views: 3799

Re: How low can you go? Gears.

I used to have a 24t front and 36t rear on the old LHT. If you didn't pedal reasonably fast you fell over. But it would go up anything it'd stick too even loaded. :lol:
by wheel71
9 Feb 2020, 3:57pm
Forum: Bikes & Bits – Technical section
Topic: Centaur 11 rear mech wobbly????
Replies: 19
Views: 781

Re: Centaur 11 rear mech wobbly????

An update on this old thread. After buying a new centaur 11 rear mech after 3 months it got so much play in the knuckle again that it wouldn't shift correctly so it's gone back under warranty. If you wobbled the bottom of the cage there was at least 15mm of loose movement side to side. I hope I get ...
by wheel71
9 Feb 2020, 3:39pm
Forum: Bikes & Bits – Technical section
Topic: 2 cross OK for road bike wheels?
Replies: 16
Views: 699

Re: 2 cross OK for road bike wheels?

I use 28h 2x 700c with DT Swiss R460db rims on very rough roads and havn't even had to tweak them in 18 months of hard use. I'm 68-70kg and often jump them off bumps and all sorts (it's the BMX'er in me). Tough as old boots. :D
by wheel71
5 Oct 2019, 8:14pm
Forum: Bikes & Bits – Technical section
Topic: How should spokes sit in nipples to be right?
Replies: 15
Views: 591

Re: How should spokes sit in nipples to be right?

I've used longer nipples which have longer threads to get around this problem before. It was when I used to build a lot of BMX wheels but I don't see why the nipples would be different but maybe they are? I can't imagine why anyone would make a nipple longer without the threads being longer? Seems a...
by wheel71
5 Oct 2019, 8:02pm
Forum: Bikes & Bits – Technical section
Topic: Centaur 11 rear mech wobbly????
Replies: 19
Views: 781

Re: Centaur 11 rear mech wobbly????

I have shimano 5700 10 speed on the old Genesis so that may explain it. I wondered why the new tiagra was different. I have older tiagra 10 speed levers (washing line :lol: ) on my turbo trainer bike with a pretty knackered old rear mech and they actually do work well and feel much nicer on your han...
by wheel71
5 Oct 2019, 7:47pm
Forum: Bikes & Bits – Technical section
Topic: How should spokes sit in nipples to be right?
Replies: 15
Views: 591

Re: How should spokes sit in nipples to be right?

If they are 12mm nipples not good. If they are 16mm nipples this would be fine. A view from the other end would be good. Are there threads showing? Ideally when tensioned you should reach the end of the threads. If it's only the one it's easy to replace.
by wheel71
4 Oct 2019, 11:18pm
Forum: Bikes & Bits – Technical section
Topic: The Disc Brake Naughty Corner Thread
Replies: 538
Views: 28326

Re: The Disc Brake Naughty Corner Thread

I ride lots of dirty steep roads all winter and after getting through a pair of £70 each rims in 5 months even when cleaning them very regularly I put a bike together with disc brakes. I get through pads but they're cheaper than rims. Had to go with TRP cable ones though as I use campag levers and c...
by wheel71
4 Oct 2019, 10:52pm
Forum: Bikes & Bits – Technical section
Topic: Centaur 11 rear mech wobbly????
Replies: 19
Views: 781

Re: Centaur 11 rear mech wobbly????

I'm not a fan of shimano gears, although I know a lot of people are very happy with them. I put up with them for years and still have it on a couple of bikes but was never happy with the shifting. I find campag stuff much easier to set up and the levers just feel perfect in my hands. Just hope the n...
by wheel71
3 Oct 2019, 3:55pm
Forum: Bikes & Bits – Technical section
Topic: Centaur 11 rear mech wobbly????
Replies: 19
Views: 781

Re: Centaur 11 rear mech wobbly????

Thanks everybody. It's definitely the top knuckle that has the play in it. I'll just have to order a new one I suppose and hope it lasts longer this time. I'll have a go at taking it apart when the new one arrives but as it's still usable at the moment I'm not doing that yet. FYI. Pulley wheels are ...
by wheel71
3 Oct 2019, 12:46pm
Forum: Bikes & Bits – Technical section
Topic: Centaur 11 rear mech wobbly????
Replies: 19
Views: 781

Re: Centaur 11 rear mech wobbly????

Loads of info there. I havn't time to read it properly now and will come back later. Thankyou all.
And I do ride on some very rough roads (someone mentioned that).
by wheel71
2 Oct 2019, 6:13pm
Forum: Bikes & Bits – Technical section
Topic: Centaur 11 rear mech wobbly????
Replies: 19
Views: 781

Re: Centaur 11 rear mech wobbly????

Thanks for the reply. It is definately play around the mounting bolt. Gears still shift ok, just not quite as crisp. Maybe the bushing has worn out but the mech is a year old and has only done 6000km so I'd be surprised if it's worn out in that time. It is on my "all weather" bike but is c...
by wheel71
2 Oct 2019, 5:42pm
Forum: Bikes & Bits – Technical section
Topic: Centaur 11 rear mech wobbly????
Replies: 19
Views: 781

Centaur 11 rear mech wobbly????

Hopefully someone can help me. My centaur 11 rear mech seems overly wobbly at the mounting bolt area (mounting bolt is/was tight). I took it off and there's a circlip that just spins round but there dosn't seem to be any way to tighten it at all. Maybe I'm missing something or maybee it's always bee...
by wheel71
3 Sep 2019, 4:50pm
Forum: Bikes & Bits – Technical section
Topic: Pocket wheel truer??
Replies: 31
Views: 1117

Re: Pocket wheel truer??

Building your own wheels is great. I've been doing it for the last 30 years. I still pick up usefull tips I never thought of even after all this time. And another vote up for the thumb on the chainstay, did that for years in my younger days when I couldn't afford a jig. You can check the dish of you...
by wheel71
28 Aug 2019, 10:02am
Forum: Touring & Expedition
Topic: McDonald's
Replies: 265
Views: 8706

Re: McDonald's

Disgusting food.
Disgusting company.
And someone mentioned ben stokes who seems a disgusting person from the footage I saw....."come on you Aussies" (I'd rather support cheats than "tommy tankers" who get away with things because they can chuck and hit a ball a bit). :evil: