Any question answered...

What size of bolt will screw into a square taper BB?

I want to use a bolt to hold my BB tool in place, so need the same thread and diameter as normal crankbolt, but longer.

Beware of the taxi drivers, it says on the side of the cars how much the fare should be per KM, but they'll take you for whatever they can.

Otherwise, beautiful country, stoney beaches and good food.

If you've got any downtime in Zadar, it's worth visiting the Garden Bar for a beer. Also, just on the quay side by the bar there are boats offering trips to the national parks, we didn't have time for one but they look a great way to spend a day.

Noted, thanks!

What size of bolt will screw into a square taper BB?

I want to use a bolt to hold my BB tool in place, so need the same thread and diameter as normal crankbolt, but longer.

M8 / 8mm, I'm fairly sure. Been meaning to do the same thing, I ended up using a ratchet clamp thing last time.

Should I race tonight?

I mean the only reason I wanted to race was to get a run out on the full TT rig with disc and all, but it's raining and I don't want to get it wet as I don't have time to clean it before I go abroad for a few months. #fuckingrain

Race with training wheels

M8 / 8mm, I'm fairly sure. Been meaning to do the same thing, I ended up using a ratchet clamp thing last time.

Do all M8 bolts have the same type of thread?

.

So I;ve got one of those brazed on seatpost clamps that would normally have a screw threading into the other side, and recessed.

It doesn't have a bolt at the minute so I'm going to do two things-
1- Use thinner diameter bolt, which fits in the recess, with 2 washers and a nut (as the thread is smaller.
2- as a back up- buy one of the regular QR seatpost clamps in the right size, and use that underneath the braze on part.

Seems like the most logical solution to me, anyone else?
H

Do all M8 bolts have the same type of thread?

No, there are two main thread types metric fine and metric coarse
http://en.wikipedia.org/wiki/ISO_metric_screw_thread

Does anyone have some forks for sale?
http://www.lfgss.com/thread84079.html

So I;ve got one of those brazed on seatpost clamps that would normally have a screw threading into the other side, and recessed.

It doesn't have a bolt at the minute so I'm going to do two things-
1- Use thinner diameter bolt, which fits in the recess, with 2 washers and a nut (as the thread is smaller.
2- as a back up- buy one of the regular QR seatpost clamps in the right size, and use that underneath the braze on part.

Seems like the most logical solution to me, anyone else?
H

Sounds completely illogical to me, why not just use the right bolt? Is the thread stripped?
How will you get the QR clamp beneath the braze on clamp?

So I;ve got one of those brazed on seatpost clamps that would normally have a screw threading into the other side, and recessed.

It doesn't have a bolt at the minute so I'm going to do two things-
1- Use thinner diameter bolt, which fits in the recess, with 2 washers and a nut (as the thread is smaller.
2- as a back up- buy one of the regular QR seatpost clamps in the right size, and use that underneath the braze on part.

Seems like the most logical solution to me, anyone else?
H

An M8 bolt fits nicely into the hole, new clamp bolts are cheap though.

Sounds completely illogical to me, why not just use the right bolt? Is the thread stripped?
How will you get the QR clamp beneath the braze on clamp?

Because I dont have 1, have some of the worst lbs choices in history, and not sure how to measure the grade of bolt that would fit.
And there's plenty of space because of an extended seat tube

An M8 bolt fits nicely into the hole, new clamp bolts are cheap though.

m8 you say, interesting...

How would I measure the grade apart from trial and error?

I'm using an 8.8 in the polo bike and it's yet to break. 12.9 would be better though for the amount of tension you put on there.

The grade and size are usually on the head of the bolt
Like so -

12.9 grade bolts are black.

I don't think he meant grade, but pitch. Unless you ask specially, all metric bolts are coarse pitch, which is what the M8 bolts holding your cranks on are.

Ooh, as for pitch. I'm using a coarse pitch which is M8x1.25. 12.9G M8x1 would be better.

Because I dont have 1, have some of the worst lbs choices in history, and not sure how to measure the grade of bolt that would fit.
And there's plenty of space because of an extended seat tube

m8 you say, interesting...

How would I measure the grade apart from trial and error?

I guess it is more likely to be M6 and you are able to get a thinner M5 bolt in the hole, which is your temporary solution. A hardware store should have a suitable AK headed steel bolt, and it doesn't have to be a high tensile bolt, it isn't under that much tension. Just use a standard steel bolt and if it hasn't got any corrosion protection (i.e. it isn't stainless or plated) make sure it has plenty of grease on the thread to protect it from rusting.
The bolts that hold cantilevers or v brakes to the frame or forks are usually the same thread, any bike shop, no matter how shit will have one somewhere.
Even with a lot of seat tube you will still have to get the QR clamp over the brazed on clamp, which could be difficult.

I have slight bulge in my back tyre (Lugano 23s with Schwalbe inners). Does this mean:

Panic - imminent blow out and crash coming. Get a new tyre quick
or
Stop worrying, HTFU and keep riding it'll be fine?

On trial and error I've found that the same bolt that fits into a star-fangled nut will fit perfectly through the thread.
I guess I may as well just go into an ironmongers and find a shorter one of them?
Unless anyone knows precisely what that bolt is.

Can somebody help me convert a .cdr file to .psd? I'm not having a lot of luck finding a solution via t'interweb

On trial and error I've found that the same bolt that fits into a star-fangled nut will fit perfectly through the thread.
I guess I may as well just go into an ironmongers and find a shorter one of them?
Unless anyone knows precisely what that bolt is.

see above^

Race with training wheels

meh... I decided to race with full kit and clean while I should be sleeping :).

Only about a minute slower on the same course than last year, in worse conditions and it was my first non commuting ride in 9 months. Loved it.

I don't think he meant grade, but pitch. Unless you ask specially, all metric bolts are coarse pitch, which is what the M8 bolts holding your cranks on are.

So I just get a standard M8 bolt that is long enough, and it will work. Great.

All metric bolts are coarse pitch

Sorry, what? No. They're not.

You get what are crudely known as "coarse" and "fine" pitch threads. Depending on the girth of the bolt coarse and fine are different sizes. A coarse M10 bolt has a pitch of 1.5mm. What most would call a fine M10 has a pitch of 1.25mm. Derailleur hangers use an M10 by 1mm pitch. On the other hand a coarse M6 - M8 bolt will have a pitch of 1.25mm. A fine will be 1mm. From M7 down you can get them with a pitch of 0.75mm

Perhaps I'm going to all the wrong places, but why is crispy aromatic duck always the former but never the latter?