Any question answered...

what is the worst that can happen by putting a 28c tyre on a 19mm width rim ?

You won't feel the benefit.

Nothing truly terrible happens if you observe the pressure limits set by both tyre and rim manufacturers, but you may end up not being able to find a pressure which gives both good ride and good handling. Set it low for good ride, and the handling goes squirmy, set it high for good handling and the ride goes to boneshaker.

Its the ideal size according to the late great Sheldon Brown.

I'm assuming that @Kyslo means a 19mm external width, i.e. 13-15mm internal, in which case Sheldon thinks either don't do it or it's at the extreme end of the viable range. We've all learned a lot about tyre/rim interaction since Sheldon died, and I think most people would shift his table by at least one row to make wider rims the preferred choice.

I did this tweak some years ago:

many thanks for a no troll reply @freezing77 & @mdcc_tester !
I know it's not great , but need to ride for a few days until i get a new tyre . Was paranoid that it'll get of the rim somewhere in the middle of the turn or during breaking and i'll just mess up the new wheel..

https://www.lfgss.com/comments/13385697/

Question re. archiving images/databases/possible app development etc.

What's the largest tyre I can safely put on a tb14? External width is 23mm.

3 posts up suggests 32c.

ahh shit, completely missed that

Lets talk RIM TAPE.

Exciting!

I have 19mm (Internal) width rims. Do I go for 16, 19 or 22mm width tape?

It's the cloth stuff if that makes a difference. Getting conflicting advice about whether I want to go for something slightly wider/narrower or bang on internal width.

I've used 16mm for 17.5mm internal width, so I'd say 16 or 19mm. Too wide and it'll make getting the tyre on more difficult.

any decent looking quill stems with 31.8 clamp in black that don't cost the earth?

Looking around £30 or am i dreaming, the factory 5 one is around $99 and therefore ruled out.

Seeing as it's the sale season, where is a good place to buy shirts? I need some for work/general suit wearing and some for casual non-tie wearing stuff.

I rate the Charles Thywrit (however it's spelt) ones. The non-iron ones are pretty good and they're a decent quality.

http://m.ebay.com/itm/351784121927?_mwBanner=1&varId=620701411480

Posted from mobile so don't know if that works. But I don't think any others exist

Always an excuse to have a mooch up Jermyn St....

So much.

That is the only other one I could find too that doesn't look like it has come off a bad 90's hybrid. Alu finish only, le sigh.

Easier to get some 26mm bars, non?

"aggi
I rate the Charles Thywrit (however it's spelt) ones. The non-iron ones are pretty good and they're a decent quality."

This.
I buy Twhittrititit shirts 8 at a time every year and a half to two years.
This is for work only. My outside-of-work garderobe couldn't be more different.
Their non-iron ones look fine when I've put them on having pulled them from my courier bag.
They've usually got deals going all the year round. If you manage to do better than 4 shirts for a ton, then you are doing unusually well.

ETA Working on sussing the quote thing....

Looks like I'll do that then. All my TM Lewin ones are literally coming apart at the seams.

I've had Lewin shirts and didn't like.

The CT ones are better, IMO. Do get the non iron ones, though. I found the non non iron CT ones shrank and lost their shape. I've now had two lots of CT non iron and they are fine. Last lot were £85 for 4; top value.

Is there a reason why it's considered ok to put a 23mm tire on a 23mm rim but unsafe to put a 32mm tire on a 31mm rim?

Charles whatever are considerably better than the TM Lewin ones I've found.

Is there a reason why it's considered ok to put a 23mm tire on a 23mm rim but unsafe to put a 32mm tire on a 31mm rim?

Internal width is the critical dimension. As rims get wider, the internal width is a greater proportion of external width. In your example, assuming the hook accounts for 3mm per side in both cases, the ratio of internal width is 17/23=0.74 in the first case and 25/32=0.78 in the second. It's a marginal difference, and there isn't really a hard cut-off, but >0.75 is something you want to approach with caution, just as <0.5 is. I have run at 0.84 and 0.41 without succumbing to fiery death, but in both cases I'd have been better off closer to the mid range. All of the above relates to road tyres. For MTB tyres, the manufacturer will usually have designed around lower ratio, probably somewhere between 0.3 and 0.6

Do SRAM 1x and 22 cranks have the same chain line if you remove the spider and fit a direct mount 1x ring?

I think...but I could be wrong...just make sure you are fitting road direct mount to road cranks and mtb direct mount to mtb cranks and all will be well.

You might get weirdness mixing road and mtb because the MTB ones tend to have an offset to counter the wider crank arm width.