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Search: Posts Made By: stratman
Showing results 1 to 50 of 76
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Forum: Bicycle Mechanics
04-12-24, 11:49 AM
Replies: 31
Views: 643
Posted By stratman

Ah, I see, thanks. I don't obsess about...

Ah, I see, thanks.

I don't obsess about exactly where I change from big ring to middle ring to small ring, to be honest. Generally speaking I would rather make changes on the rear than the front....
Forum: Bicycle Mechanics
04-12-24, 09:54 AM
Replies: 31
Views: 643
Posted By stratman

Actually, I've just read that again. It...

Actually, I've just read that again.

It doesn't make sense. What do those numbers mean? You haven't got a rear cassette with 21 sprockets, have you? Presumably the smallest is 11 teeth, and the...
Forum: Bicycle Mechanics
04-12-24, 09:45 AM
Replies: 31
Views: 643
Posted By stratman

To be blunt, imagining that you have to memorise...

To be blunt, imagining that you have to memorise all that is crazy. If you are trying to keep those numbers in your head, and change gear due to some prescribed numerical pattern, I'd say you aren't...
Forum: Bicycle Mechanics
04-12-24, 07:56 AM
Replies: 31
Views: 643
Posted By stratman

I personally don't know why the spacing at the...

I personally don't know why the spacing at the front is wider, is the simple answer. But a useful side effect is that the chain will usually be straighter, depending, of course, upon how one uses the...
Forum: Bicycle Mechanics
04-12-24, 03:37 AM
Replies: 21
Views: 751
Posted By stratman

I'm not sure why you think that the H screw...

I'm not sure why you think that the H screw "seems to work fine", because you can see it moving the cage. I would actually worry that you're putting strain on the indexing in the shifters by having...
Forum: Bicycle Mechanics
04-12-24, 03:03 AM
Replies: 31
Views: 643
Posted By stratman

Mine's a nine speed. It looks like yours is a...

Mine's a nine speed. It looks like yours is a seven speed.

If your drive train is set up so chainline is the same at the crankset and the cassette when you are in middle ring and middle sprocket,...
Forum: Bicycle Mechanics
12-24-23, 04:15 AM
Replies: 69
Views: 2,208
Posted By stratman

The only thing I remember reading about roller...

The only thing I remember reading about roller brakes and hills was to do with long descents on a fully loaded touring bike, where some people have experienced the bike overheating and the grease...
Forum: Bicycle Mechanics
12-23-23, 08:41 AM
Replies: 69
Views: 2,208
Posted By stratman

Sure, I understand. That Gazelle might be a...

Sure, I understand.

That Gazelle might be a better option then. I thought when I looked at the picture in the link you posted that the bike had roller brakes. Roller brakes sometimes look similar...
Forum: Bicycle Mechanics
12-23-23, 07:11 AM
Replies: 13
Views: 477
Posted By stratman

Thanks. Yes, I'm aware of the Shimano docs site....

Thanks. Yes, I'm aware of the Shimano docs site. I've got the docs for my hub, which is the M525A. They are different.
Forum: Bicycle Mechanics
12-23-23, 06:46 AM
Replies: 69
Views: 2,208
Posted By stratman

Dear OP, I sense your deep frustration with...

Dear OP,

I sense your deep frustration with derailleur geared bikes. But I am certain it is almost certainly possible to get beyond that. Resources like this forum are a wealth of knowledge,...
Forum: Bicycle Mechanics
12-22-23, 06:51 PM
Replies: 69
Views: 2,208
Posted By stratman

I'm sure it's possible to do work on a bike...

I'm sure it's possible to do work on a bike without a stand, as some here have described.

But speaking personally, I'd be lost without mine. My current bike is the first derailleur bike I've...
Forum: Bicycle Mechanics
12-22-23, 03:16 PM
Replies: 13
Views: 477
Posted By stratman

Thanks for the reply. So I believe. When I...

Thanks for the reply.

So I believe. When I serviced them I cleaned all the grease out, and gave the cups and cones a good visual inspection. I couldn't see any damage, doesn't mean there isn't...
Forum: Bicycle Mechanics
12-22-23, 09:43 AM
Replies: 13
Views: 477
Posted By stratman

Front hub to rear hub wear ratio?

I have a pair of hubs, Shimano FH-M252A and HB-M525A, on my bike. I serviced them fairly early on, after a few hundred miles, as some people think they are too tight from new. I've put good grease in...
Forum: Bicycle Mechanics
11-30-23, 07:11 PM
Replies: 25
Views: 1,468
Posted By stratman

Really? Where can you get replacement 9 speed...

Really? Where can you get replacement 9 speed hoods? I've looked high and low for replacements for ST-6510 shifters, and can't find any.
Forum: General Cycling Discussion
11-29-23, 02:26 PM
Replies: 10
Views: 503
Posted By stratman

That looks like an excellent idea, thanks. A...

That looks like an excellent idea, thanks. A quick google turns up lots of different types, one of them will probably do the job.
Forum: General Cycling Discussion
11-28-23, 03:44 PM
Replies: 10
Views: 503
Posted By stratman

Shin pads/guards.

I ride a road bike. On roads. I have dual sided pedals, Shimano T8000, and am usually clipped in.

Even so, I still seem to end up catching my shin every so often. Does anybody have any suggestions...
Forum: Bicycle Mechanics
11-11-23, 07:37 AM
Replies: 31
Views: 1,080
Posted By stratman

Be aware that there is a difference in Shimano...

Be aware that there is a difference in Shimano STI levers, starting with models introduced after 2008 IIRC. It's SLR vs NSSLR (at least, I think those are the acronyms Shimano use). What basically...
Forum: Bicycle Mechanics
10-01-23, 01:56 PM
Replies: 84
Views: 4,349
Posted By stratman

I've got a triple (nine speed). Sometimes, for...

I've got a triple (nine speed). Sometimes, for fun (!), I run through every possible combination, including small-small and big-big. I can get them all without chain rub, though I have to use trim on...
Forum: Classic & Vintage
09-25-23, 03:29 AM
Replies: 124
Views: 12,343
Posted By stratman

Thanks. In this thread...

Thanks.

In this thread (https://www.retrobike.co.uk/threads/sks-rennkompressor-review-and-modifications.348173/page-2) (from another site) somebody says the hole for the gauge is (was) 1/4" BSPP....
Forum: Classic & Vintage
09-24-23, 05:00 AM
Replies: 124
Views: 12,343
Posted By stratman

Many thanks for alerting me to this, very useful....

Many thanks for alerting me to this, very useful. It means I've ordered a 1/2" to 1/4" adaptor that I don't need, but never mind. I'll see if I can cancel that.

It turns out that BSP fittings...
Forum: Classic & Vintage
09-22-23, 06:00 PM
Replies: 124
Views: 12,343
Posted By stratman

Thanks. I've got the gauge off, and whatever it...

Thanks. I've got the gauge off, and whatever it is it's not 1/4" inch. It measures 1/2" and it's some sort of tapered thread. But I can't tell if it's NPT or BSP. I haven't got any thread measuring...
Forum: Classic & Vintage
09-22-23, 11:05 AM
Replies: 124
Views: 12,343
Posted By stratman

Hello. Apologies for resurrecting an old thread....

Hello. Apologies for resurrecting an old thread. But I've got the same pump, and the gauge is inaccurate (about 10psi over), and also quite hard to read. I was thinking about replacing it with a...
Forum: Bicycle Mechanics
09-22-23, 10:51 AM
Replies: 30
Views: 1,403
Posted By stratman

Thanks. Apologies, we cross posted, but you've...

Thanks. Apologies, we cross posted, but you've confirmed what I thought. This isn't for a Silca pump, by the way, it's for the SKS Rennkompressor...
Forum: Bicycle Mechanics
09-22-23, 10:44 AM
Replies: 30
Views: 1,403
Posted By stratman

Ah, wait a moment. The Hiro can screw into a...

Ah, wait a moment. The Hiro can screw into a threaded Schrader chuck. Or maybe that's the only way to attach it? In which case I'd have to buy a threaded Schrader chuck, but I would then have both...
Forum: Bicycle Mechanics
09-22-23, 10:34 AM
Replies: 30
Views: 1,403
Posted By stratman

Thanks both of you. Yes, the reputation of the...

Thanks both of you. Yes, the reputation of the Hiro is stellar. I'm tempted, very tempted. Also tempted to start using tyres with smooth valves, I hate that forcing it on feel. Thought, does anybody...
Forum: Bicycle Mechanics
09-22-23, 08:40 AM
Replies: 30
Views: 1,403
Posted By stratman

Thanks. Yes, that sounds like a plan. Get a...

Thanks. Yes, that sounds like a plan. Get a couple of spare tubes with removable cores. I get very few punctures, because of the tyres I use.

As I said, this being the first bike I've had with...
Forum: Bicycle Mechanics
09-22-23, 04:12 AM
Replies: 30
Views: 1,403
Posted By stratman

Oh, right. That's a pain. I assumed they were...

Oh, right. That's a pain. I assumed they were interchangeable. Is it that they are supposed to be, but sometimes aren't?

Anyway, the tubes are Schwalbe (I think) so if I get Schwalbe cores (as...
Forum: Bicycle Mechanics
09-21-23, 04:32 PM
Replies: 30
Views: 1,403
Posted By stratman

Are all Presta cores the same quality?

A while ago one of my Presta valves failed. The thin inner rod broke. I suspect I have been a little careless in the past with how I put the pump head on (it's the first bike I've had with Presta...
Forum: Bicycle Mechanics
10-29-21, 04:36 AM
Replies: 25
Views: 1,348
Posted By stratman

OK. I've tracked down the origin of the pretty...

OK. I've tracked down the origin of the pretty picture:

https://1ja0pa1tvpl63v04fj2l0oby-wpengine.netdna-ssl.com/wp-content/uploads/2018/04/Timken-Tapered-Roller-Bearing-Catalog_10481.pdf#page=31...
Forum: Bicycle Mechanics
10-28-21, 04:00 PM
Replies: 25
Views: 1,348
Posted By stratman

A very vague and unproven "idea". Nothing more...

A very vague and unproven "idea". Nothing more than a feeling.


One doesn't need to understand calculus, or "know how to interpret the slope of the curve (first derivative)" as you put it, to see...
Forum: Bicycle Mechanics
10-28-21, 11:36 AM
Replies: 25
Views: 1,348
Posted By stratman

It may be interesting, but I'm not sure it has a...

It may be interesting, but I'm not sure it has a great deal of relevance to the discussion here. It looks to me like an attempt to "persuade with scientific looking pictures".

Copies of that chart...
Forum: Bicycle Mechanics
10-28-21, 09:17 AM
Replies: 25
Views: 1,348
Posted By stratman

Where did you find that chart?

Where did you find that chart?
Forum: Bicycle Mechanics
10-28-21, 06:10 AM
Replies: 11
Views: 1,830
Posted By stratman

Yes. In fact, any 9 speed MTB shifter is also...

Yes. In fact, any 9 speed MTB shifter is also compatible, for the rear. The cross-compatibility of late 90s/early 00s Shimano nine speed is why I am currently buying up any NOS nine speed triple...
Forum: Bicycle Mechanics
10-28-21, 05:45 AM
Replies: 11
Views: 1,830
Posted By stratman

Also, don't get an old nine-speed shifter without...

Also, don't get an old nine-speed shifter without the hood, thinking "I'll be able to get a new hood". You almost certainly won't. Try searching now for one. For some reason none of the aftermarket...
Forum: Bicycle Mechanics
10-28-21, 05:37 AM
Replies: 11
Views: 1,830
Posted By stratman

Just read your second post. You say the shifters...

Just read your second post. You say the shifters are actually Sora? Sora nine speed is a current model, why does the bike shop say they can't get them?
Forum: Bicycle Mechanics
10-28-21, 05:33 AM
Replies: 11
Views: 1,830
Posted By stratman

Beware the advice "any nine speed shifter is...

Beware the advice "any nine speed shifter is compatible". That is almost certainly true for the shifting mechanism of the STI unit. But not necessarily the braking part. Shimano STI units introduced...
Forum: Bicycle Mechanics
10-23-21, 09:42 AM
Replies: 20
Views: 1,138
Posted By stratman

Just a tip folks. These are going up in price,...

Just a tip folks. These are going up in price, presumably as they start to get towards the end of their stock. Somebody just bought 40.

If you want one I'd buy soon, before they either run out or...
Forum: Bicycle Mechanics
10-21-21, 04:08 PM
Replies: 20
Views: 1,138
Posted By stratman

Yes, I wonder where these all came from too.

Yes, I wonder where these all came from too.
Forum: Bicycle Mechanics
10-21-21, 04:07 PM
Replies: 20
Views: 1,138
Posted By stratman

That's great, thanks very much for reporting...

That's great, thanks very much for reporting back. I better order one soon, I don't want to find out they've all gone because I notified people about them here!!
Forum: Bicycle Mechanics
10-18-21, 12:14 AM
Replies: 20
Views: 1,138
Posted By stratman

I've never seen a pair of ST-R600s in the flesh,...

I've never seen a pair of ST-R600s in the flesh, but I don't think it would be that easy. They'd need a supply of the plastic covers, which are actually even harder to get hold of than the complete...
Forum: Bicycle Mechanics
10-17-21, 06:21 PM
Replies: 20
Views: 1,138
Posted By stratman

Thanks. Something about this isn't right. If...

Thanks.

Something about this isn't right. If there's one thing I know about it's searching for NOS ST-6510s on the internet. No seller would hang on to these as an appreciating asset, they aren't...
Forum: Bicycle Mechanics
10-17-21, 05:56 PM
Replies: 20
Views: 1,138
Posted By stratman

Thanks. Where did you find that purchase history?...

Thanks. Where did you find that purchase history? You're right, it looks suspicious. Who on earth buys 25 of these at once? And I agree, I've spent a lot of time tracking down NOS 9 x 3 drivetrain...
Forum: Bicycle Mechanics
10-17-21, 04:10 PM
Replies: 20
Views: 1,138
Posted By stratman

Genuine seller?

I run nine speed triple, and am always on the lookout for NOS backup parts. Does this seller look genuine?

NOS ST-6510...
Forum: Bicycle Mechanics
10-08-21, 07:46 PM
Replies: 17
Views: 798
Posted By stratman

Thank you for a useful reply.

Thank you for a useful reply.
Forum: Bicycle Mechanics
10-08-21, 07:39 PM
Replies: 17
Views: 798
Posted By stratman

Do you think an XT cassette will last longer than...

Do you think an XT cassette will last longer than a Sora cassette?
Forum: Bicycle Mechanics
10-08-21, 06:55 PM
Replies: 17
Views: 798
Posted By stratman

Do you think an XT cassette will last twice as...

Do you think an XT cassette will last twice as long as a Sora cassette?
Forum: Bicycle Mechanics
10-08-21, 04:59 PM
Replies: 17
Views: 798
Posted By stratman

Do XT cassettes last longer?

I run nine speed triple on a road bike. I'm keen to future proof my set up, so have bought spare derailleurs, shifters. What I haven't stocked up on is spare cassettes (or chains). There are still...
Forum: Bicycle Mechanics
07-26-21, 07:18 AM
Replies: 22
Views: 1,580
Posted By stratman

Other points to mention: 1. On the rear hub...

Other points to mention:

1. On the rear hub (assuming a standard Shimano C&C derailleur cassette), the drive side cup and cone shouldn't be adjusted. Some people in fact use threadlocker to make...
Forum: Bicycle Mechanics
07-26-21, 06:56 AM
Replies: 22
Views: 1,580
Posted By stratman

The term "hub vice" which has been used is a...

The term "hub vice" which has been used is a little misleading. You can find things offered for sale described as a "hub vice" which look as though they grip the axle, so that you can work on the...
Forum: Bicycle Mechanics
07-26-21, 06:42 AM
Replies: 22
Views: 1,580
Posted By stratman

Front hub ball bearing sizes (Shimano cup and...

Front hub ball bearing sizes (Shimano cup and cone):

https://bike.bikegremlin.com/2255/standard-bicycle-bearing-ball-sizes/
https://steveukmtb.wordpress.com/shimano-hub-overhaul-cup-and-cone/...
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