68mm English thread BB Recommendations

Looking at building up a new bike after my frame broke. I'm a bit of a newbie and don't really know too much about Bottom Brackets, other that I'll need a sealed one, as I ride in wet weather.

I do need a 68mm English thread BB for the frame and have read the thread 'The definitive list' but not sure which ones are sealed and also which ones people have used or would buy themselves. Looking for a good one, not a cheap one. Can people give me an idea of what they would buy that covers what I need. I'm also looking at cranksets as well, so please recommend away.

UN52 or UN72, many sizes available to suit cranks. Cheap win.

Try this:http://cgi.ebay.co.uk/NOS-Real-Crank-Case-Extra-Sealed-Bottom-Bracket-110mm_W0QQitemZ350188234039QQcmdZViewItemQQptZUK_sportsleisure_cycling_bikeparts_SR?hash=item350188234039&_trksid=p3286.c0.m14&_trkparms=72%3A1683%7C66%3A2%7C65%3A12%7C39%3A1%7C240%3A1318
Totally adjustable and rebuildable.
I've got a couple of them and they are supurb. You can choose betwen 2 or 4 bearings and the new bearings are £2 each on Flea Bay.

.....e p.p

Lots of people used to ride their bikes in wet weather long before the invention of sealed bearings.
I still ride cups and cones on two of my three bikes.
Sealed is not a necessity.

UN52 or UN72, many sizes available to suit cranks. Cheap win.

Read a bit on here about Shimano BB being a bit of a pain.

Like the look of Token Tiramic BB TK877B, anyone have any experiences with these. Are they sealed?

Also what's the score on length, keep seeing 107mm - 122mm etc. I take it this is the length of the shaft that the crank attaches to, how will I know which size to order.

Sorry, but the questions will be ongoing, way to new at this.

Mate - need to know your chainline. What kinda frame is it? Did it have a double chainset, single or a triple? What is the spacing at the rear wheel - it is is 120mm, you need a 68mm British Thread 103mm Spindle BB - gives you a 42mm chainline.

If it is over 120mm at the rear - you will need to adjust the BB spindle length accordingly as the chainline will change. 107mm BB will give you the right chainline for a fixed bike which had a double chainset.

PM me, if you get stuck.....

Sheldon Brown on t'interweb can help!

Also what's the score on length, keep seeing 107mm - 122mm etc. I take it this is the length of the shaft that the crank attaches to, how will I know which size to order.

You need to match your BB and crank. Look for the cranks, then the BB. Have a look about on the internet and you'll find what cranks go with what BBs (normally it's listed with the crank).

If you want something cheap then the FSA Vero crank isn't terrible. It goes with the 110mm Shimano UN40 BB. Both available from Velosolo.co.uk

Sugino RD goes with the 103mm Sugino BB. This stuff is all quite easy to find.

dude transmission database tells you what other people are riding and what works so you can then make a decision about what yours should be, and means you don't buy the wrong thing.

http://www.londonfgss.com/thread3372-4.html#post628030

I currently have an FSA RPM crank, which I wanted to update to something better. Looking for a better BB as well, as I'm pretty sure the one I have it cheap and I've had it nearly 2 years. Seems I need to start with crank choice rather than BB.

How about the Pro-Lite Sondrio Track 7075 Alloy Crankset, comes with BB. Doesn't say anything about sizes for BB though, how would I know if it fits?

http://www.chainreactioncycles.com/Models.aspx?ModelID=28876

Also the SRAM S300 1.1 Chainset. Doesn't mention anything about what BB I would need. This is why i need a little help from all the brains on here.

http://www.chainreactioncycles.com/Models.aspx?ModelID=31621

Anyone think these are any good. Look nice, price seems to point to they are good.

buy this:
http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=350188236455&ssPageName=ADME:B:EOIBSA:UK:11
Bargainous:
http://www.google.co.uk/products?q=truvativ+omnium&oe=utf-8&rls=org.mozilla:en-US:official&client=firefox-a&um=1&ie=UTF-8&ei=A5ztSbH8LeWQjAfm0_EJ&sa=X&oi=product_result_group&resnum=1&ct=title

esp as it includes BB.

i can recommend the product and the seller.
excellent service.

dude transmission database tells you what other people are riding and what works so you can then make a decision about what yours should be, and means you don't buy the wrong thing.

http://www.londonfgss.com/thread3372-4.html#post628030

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if you then have specific questions just PM the user.

I agree with Ma3k. Shimanos are cheap and work well.

dude transmission database tells you what other people are riding and what works so you can then make a decision about what yours should be, and means you don't buy the wrong thing.

http://www.londonfgss.com/thread3372-4.html#post628030

The two cranks I've mention above aren't there (from what I can see).

Miche Primato Advanced Track Chainset look ok. How do I know if I need 170mm or another size.

Sugino 75 seems popular. Where's the best place to get one?

BLB, Cavendish, 14... etc?

UN72 if you can get one in the required size but they don't make 'em any more, best taper cartridge bottom bracket by a long way!

wapping
170mm is the length of the crank, most people ride 170's, if you go 165mm its slightly shorter changes your pedal action slightly, less danger of pedal strike if your riding a conversion, which has a lower bb shell..

The pro lite looks nice but I'd be wary of spending that sort of money on a crankset which is only ever gonna be on the road, seems kind of like a waste of money, 75's, campag pista record, dura ace, not as expensive, but more road proven imo. Also the info to get a good straight chainline is already available, if you went for the pro lites or the Sram's you'd have to figure it all out yourself.

Dude!

Seriously - check the spacing between the forkends/drop outs where the rear wheel will sit! Don't just go an buy one because it is popular, you will have no end of issues with noisy chain and so on/chain coming off, worst case scenario!
120mm space between the dropout/fork end = 42mm chainline - Sugino 103mm BB + crank will suffice.
anymore than 120mm and you will need a larger chainline - hence a larger spindle bb - 107mm for a 130mm spacing and so on.
The transmission DB is not that accurate - it is just what people have used as opposed to what works well and is mathematically matched to the frame chainline!!! Do it right and a chain/crank/sprocket will last forever and be virtually silent while running, get it wrong and you will have broken chains, excessive chain wear/sprocket and chainset wear, grindy noises (my pet hate) and chain coming off.

Make sure you torque the BB up into place and get it in straight first time - Personally, I put the "non-chainring" side in a little bit and use that as a guide for the "driveline" side....

You will need a tool to do the BB up sufficiently....Otherwise it will come loose - believe me, it will!

Just don't want you having an accident due to poor driveline setup - they are the worst kinda accidents as they are so unexpected......!

Up to about a 21.5" frame you can get away with a 170mm crank......Anything below that and you are looking at a 165mm crank (more difficult to pull - fulcrums, levers and so on - increses your gear inch). Above 21.5" you can head towards a 175mm crank.....but you may get ground strike cornering with road frames as the BB is generally slightly higher in full on track frames to account for velodrome banking.

For a 21.5 inch frame with 120mm rear spacing I have: Sugino 75 165mm crank, Sugino 103mm 68 x English Thread BB (gives a 42mm chainline). Means that I don't get wheel or ground strike, I run a 48/16 or 15 ratio on a flip/flop hub and I get no noise or hassle with chains!

Great info, just what i was looking for. The frame is 53cm and has a 120mm rear spacing and can take a crank arm up to 175mm. Sugino 75 165mm crank, Sugino 103mm 68 x English Thread BB sounds like it might be along the right lines. Just need to find a black Sugino 75 somewhere.

Need to get some tools and a chain as well.

Sorted - sounds good! I would go with that setup exactly: www.italian-solutions.co.uk can provide. Go with the 165mm on a smaller frame - may hart a bit more, but will be better clearances (depending on foot size too!) - I have size 9 feet, on a 55cm frame - hence 165mm in clips.

anyone used http://www.hubjub.co.uk/ before. They have the Sugino 75 in black, but it's a bit pricey at £238 (£223 for the silver). Sugino BB is £25 at www.italian-solutions.co.uk.

http://www.hubjub.co.uk/sugino/sugino.htm

http://www.italian-solutions.co.uk/product.php?productid=161595&cat=314&page=1

Try the Sugino Messenger/RD chainset from italian solutions.

hubjub is a very good website
its just that the cost of importing components has risen with the failing economy

I would go with: http://www.italian-solutions.co.uk/product.php?productid=161596&cat=310&page=1

• the 103 BB - £95 the lot seems reasonable.