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Search: Posts Made By: grumpus
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04-08-24, 03:32 PM
Replies: 42
Views: 1,117
Posted By grumpus

That was probably their attempt to reduce toe...

That was probably their attempt to reduce toe strike. But stand over is low, so we'll call it a good fit. 😁
04-03-24, 10:03 AM
Replies: 16
Views: 505
Posted By grumpus

I had a bike that was silver on one side and...

I had a bike that was silver on one side and metallic blue on the other, because it had been left facing the same way in the sun for a decade or more. I eventually repainted it because I did some...
04-02-24, 06:24 AM
Replies: 26
Views: 966
Posted By grumpus

Trigger shifters, where you press one lever to...

Trigger shifters, where you press one lever to shift up and another to shift down, often suffer from dried up grease that stops the mechanism from ratcheting. You can often get these working again by...
03-31-24, 07:08 PM
Replies: 31
Views: 874
Posted By grumpus

Short enough to worry about. Don't try to stretch...

Short enough to worry about. Don't try to stretch them, just put it down to experience and buy some longer spokes.
03-30-24, 06:22 PM
Replies: 22
Views: 491
Posted By grumpus

Skipping may occur if your chain is too long and...

Skipping may occur if your chain is too long and the rear derailleur is unable to take up the slack, but it works fine when the large front ring takes it up. Or your rear derailleur is bent and/or...
03-30-24, 05:51 PM
Replies: 22
Views: 701
Posted By grumpus

I live with someone who occasionally needs...

I live with someone who occasionally needs reminding - "On your left. No, the other left." Might be a liability on group rides but she's good with other stuff.
03-30-24, 04:14 AM
Replies: 22
Views: 701
Posted By grumpus

Did you try turning them in the tightening...

Did you try turning them in the tightening direction? Sometimes that can help to break the thread free.

As others have said, an appropriately sized washer or coin will allow your regular crank...
03-30-24, 04:04 AM
Replies: 22
Views: 701
Posted By grumpus

Lye (sodium hydroxide, caustic soda) will...

Lye (sodium hydroxide, caustic soda) will dissolve aluminium, so it's not appropriate in this application.
03-30-24, 03:42 AM
Replies: 22
Views: 701
Posted By grumpus

That's incorrect, drive side bbkt cup is LH...

That's incorrect, drive side bbkt cup is LH thread, drive side pedal is RH thread.
03-27-24, 01:50 PM
Replies: 5
Views: 165
Posted By grumpus

I think so, but I wouldn't bet the farm, because...

I think so, but I wouldn't bet the farm, because there's usually an oddball somewhere to make things complicated.
03-27-24, 01:11 PM
Replies: 5
Views: 165
Posted By grumpus

That is the standard, I don't know why, but it is.

That is the standard, I don't know why, but it is.
03-27-24, 12:45 PM
Replies: 19
Views: 385
Posted By grumpus

I'm a fan - I have at various times used Big...

I'm a fan - I have at various times used Big Apple, Super Moto, Fat Frank, Crazy Bob, all good tyres, they roll well and soak up the bumps too. Mostly pretty reasonable prices, Super Moto costs a bit...
03-27-24, 10:38 AM
Replies: 17
Views: 362
Posted By grumpus

​​​​​​That's a good ballpark method on a new...

​​​​​​That's a good ballpark method on a new build, but if the chain is already on you can still check it with your thumb, while pedalling with the other hand. Even if you go into the spokes you'll...
03-25-24, 05:47 PM
Replies: 29
Views: 873
Posted By grumpus

It's mainly important when someone says "my bike...

It's mainly important when someone says "my bike has n gears" and 'n' is more gears than you have - you then inform them that actually they have fewer, because of all the duplicates.
03-25-24, 02:15 PM
Replies: 11
Views: 388
Posted By grumpus

Why not just put the ring in the triple middle...

Why not just put the ring in the triple middle position? Then, if the chainline was right before, it will still be good. And as someone else said, why go to an eight speed cassette when your current...
03-25-24, 01:23 PM
Replies: 136
Views: 3,763
Posted By grumpus

But since then you've created various straw men,...

But since then you've created various straw men, and persisted in not getting the point, in a way that makes it look like you're out to "win" something, even though it looks from here like you've...
03-23-24, 12:03 PM
Replies: 136
Views: 3,763
Posted By grumpus

Yours is probably the more correct way. I've done...

Yours is probably the more correct way. I've done some really dodgy hacks, like tying a bent bike between two cars and pulling until it was straight again - I like to think I'm a bit of a redneck.
03-23-24, 11:02 AM
Replies: 13
Views: 524
Posted By grumpus

Sorry but I have to say this, because nobody else...

Sorry but I have to say this, because nobody else did:

The difference is 110.

Ba-dum-tish. Thank you very much, I'm here all week etc.


​​​​​
03-23-24, 08:36 AM
Replies: 136
Views: 3,763
Posted By grumpus

Tell me about it. I was replacing the rear ends...

Tell me about it. I was replacing the rear ends on a frame, and when I took out the old pieces the seat stays sprang out a load, probably because the brake bridge was forced in. I slotted in the new...
03-23-24, 08:21 AM
Replies: 136
Views: 3,763
Posted By grumpus

You're the one telling a pro mechanic his methods...

You're the one telling a pro mechanic his methods are wrong, when they're SOP and "good enough". But the discussion got turned around and from "insignificantly small" fractional degree changes in...
03-21-24, 06:57 PM
Replies: 19
Views: 423
Posted By grumpus

Looks to me that the hanger is bent in, and...

Looks to me that the hanger is bent in, and that's what put the derailleur into the spokes.
03-20-24, 10:07 AM
Replies: 18
Views: 459
Posted By grumpus

And if it's really tight, like tandem tight, have...

And if it's really tight, like tandem tight, have someone else lend a hand.
03-17-24, 05:48 PM
Replies: 31
Views: 845
Posted By grumpus

It might be easier to use one of these ...

It might be easier to use one of these
https://cimg9.ibsrv.net/gimg/bikeforums.net-vbulletin/1000x1000/s_l1600_2__3d3ab92bd1f8fe6ee5ddee02f16c4c76871a3462.jpg
then you don't have to mess with the...
03-16-24, 10:45 AM
Replies: 29
Views: 873
Posted By grumpus

SRAM is trying to create standards that everyone...

SRAM is trying to create standards that everyone can use, to reduce the confusion....
03-16-24, 06:12 AM
Replies: 16
Views: 458
Posted By grumpus

Ah, that's not good - seems like maybe some paint...

Ah, that's not good - seems like maybe some paint got in the hole, in which case you need to clear it. A 2 mm drill in a 2 inch hole when you can't see what you're doing is just asking for disaster,...
03-15-24, 10:16 AM
Replies: 11
Views: 456
Posted By grumpus

Wow, classy - I'd use a penny. :-)

Wow, classy - I'd use a penny. :-)
03-14-24, 04:29 AM
Replies: 11
Views: 354
Posted By grumpus

He wrote "I removed the expander bung" and "The...

He wrote "I removed the expander bung" and "The bung is actually very long (by modern standards)" - I think that's pretty conclusive evidence that he doesn't have a star nut, and knows what he's...
03-13-24, 12:59 PM
Replies: 11
Views: 354
Posted By grumpus

Never ever ever use a star fangled nut in a...

Never ever ever use a star fangled nut in a carbon steerer.
03-13-24, 08:55 AM
Replies: 14
Views: 362
Posted By grumpus

This is why even tubeless riders carry spare...

This is why even tubeless riders carry spare tubes. For repair as long as the casing isn't distorted just use regular Rema patches. For larger cuts where the casing may distort use reinforced...
03-12-24, 08:02 PM
Replies: 16
Views: 5,937
Posted By grumpus

That's an annoying habit.

That's an annoying habit.
03-12-24, 01:54 PM
Replies: 19
Views: 662
Posted By grumpus

You'll need a crank puller and a bottom bracket...

You'll need a crank puller and a bottom bracket tool, available cheaply online (http://www.ebay.co.uk/itm/134897869503), then all you need is a ratchet or adjustable spanner to turn the tools. Bottom...
03-08-24, 04:54 PM
Replies: 19
Views: 412
Posted By grumpus

That states the diameter is 2.0 mm and groove...

That states the diameter is 2.0 mm and groove width 1.0 mm, apparently SRAM uses 2.3 mm x 0.64 mm which is standardised in DIN 6799. Now, for a non-essential part that springs to fit, that might be...
03-08-24, 03:41 PM
Replies: 19
Views: 412
Posted By grumpus

It's a form of external circlip, in a pinch I've...

It's a form of external circlip, in a pinch I've just twisted wire around the pin as a substitute, but you probably don't even need it if you put Loctite on the pin thread.
03-08-24, 02:57 PM
Replies: 71
Views: 2,247
Posted By grumpus

"The perfect lube for occasional cyclists and...

"The perfect lube for occasional cyclists and bikes often put into storage" - doesn't sound like it's appropriate for regular 100 miles a week.
03-08-24, 10:39 AM
Replies: 58
Views: 1,664
Posted By grumpus

Years ago I cut a small slot in a water pipe...

Years ago I cut a small slot in a water pipe while fixing the floor - I clamped a bit of old radiator hose over the cut, meaning to go back later with some solder ...
03-08-24, 08:23 AM
Replies: 71
Views: 2,247
Posted By grumpus

I don't think there's any need to read further,...

I don't think there's any need to read further, and I find it hard to understand why anyone would answer this post with anything other than a link to a previous thread where everyone goes through the...
03-08-24, 07:23 AM
Replies: 17
Views: 6,070
Posted By grumpus

The shock cartridge is worn out, so there's...

The shock cartridge is worn out, so there's rotational movement. But that was four years ago so he's probably fixed it by now.
03-06-24, 08:54 PM
Replies: 24
Views: 638
Posted By grumpus

The brand is Pinion, a manufacturer of bicycle...

The brand is Pinion, a manufacturer of bicycle gear systems like Rohloff - would you need to know the make model year of a bike if the question was simply about what oil to use in a Rohloff hub?
03-06-24, 08:26 PM
Replies: 58
Views: 1,664
Posted By grumpus

The lowest setting on a typical automotive torque...

The lowest setting on a typical automotive torque wrench is too high for most bike parts.
03-04-24, 01:23 PM
Replies: 22
Views: 718
Posted By grumpus

Break up the ball retainer and remove the balls...

Break up the ball retainer and remove the balls and inner race. Then run a bead of weld around the inside of the outer race. With a bit of luck that causes everything to shrink inwards as the weld...
03-03-24, 12:50 PM
Replies: 9
Views: 6,281
Posted By grumpus

User made two posts three years ago - I don't...

User made two posts three years ago - I don't think he's still here.
03-03-24, 12:15 PM
Replies: 123
Views: 3,959
Posted By grumpus

I didn't say I'd done it, just that it could...

I didn't say I'd done it, just that it could happen. TBH I don't recall using both spares in a single ride, other than giving them to less prepared clubmates. I have had a snakebite or two, probably...
02-29-24, 01:41 PM
Replies: 43
Views: 1,191
Posted By grumpus

Have you been lifting the bike by the back of the...

Have you been lifting the bike by the back of the saddle? That's the common way for this damage to occur, particularly if you do it with luggage on the bike. Lift by the seat-post, frame or pannier...
02-25-24, 09:48 AM
Replies: 14
Views: 611
Posted By grumpus

It used to be just a derailleur hanger, but then...

It used to be just a derailleur hanger, but then aluminium frames and a hundred different sorts of derailleur hanger emerged, and it was helpful to differentiate this from those.
02-25-24, 09:20 AM
Replies: 19
Views: 722
Posted By grumpus

It wouldn't be a "light sand" - you'd have to...

It wouldn't be a "light sand" - you'd have to remove the hardened surface layer to get it concentric again, and then you'd have a soft bearing surface that didn't fit the cups. Just fit a cheap...
02-25-24, 08:19 AM
Replies: 31
Views: 1,065
Posted By grumpus

You initiate a lean by counter-steering, and you...

You initiate a lean by counter-steering, and you normally do it unconsciously. You also resist the "castering" through a turn, otherwise the bike would flip itself upright. On a motorcycle it can be...
02-23-24, 09:49 AM
Replies: 23
Views: 654
Posted By grumpus

The key phrase might be "from new stock", because...

The key phrase might be "from new stock", because the longer it's been folded the more likely it is to be annoying, I think. Not difficult, just annoying when it won't go on the rim because it's both...
02-20-24, 04:02 PM
Replies: 23
Views: 654
Posted By grumpus

Sometimes a folding tyre has a mind of its own -...

Sometimes a folding tyre has a mind of its own - take it out of the wrapper and lie it flat for a day or two, preferably with a slightly inflated tube in it, when you come back it will be more...
02-20-24, 03:26 PM
Replies: 48
Views: 1,501
Posted By grumpus

That's automotive mechanic stuff, many bike...

That's automotive mechanic stuff, many bike things need more finesse in the setup: just bolting things on doesn't necessarily put them in the right place, at the right tension etc..
02-20-24, 03:01 PM
Replies: 17
Views: 524
Posted By grumpus

Get two identical benchtop vises, of capacity at...

Get two identical benchtop vises, of capacity at least 2.5 inches, and bolt the baseplates together.
Showing results 1 to 50 of 315
 


 
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