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Hi, I need to replace the bb and cranks on my 07 bianchi pista. Can anyone recommend a not too crap and relatively inexpensive crank and bb combo.

front brake
back brake
fixed wheel=brake

= 3 brakes

beat that freewheel boy

http://www.billys.co.uk/english/group.php?prod=pdpg&PHPSESSID=49her7sell89hpdj8qa9ohjof6

tho they seem expensive.

I got mine from brixton cycles

Three things piss me off about helmets. (sorry to write on-topic)

1 - They are only designed to withstand low speed impacts not involving any other vehicle. So wearing a helmet in traffic should be redundant. In fact, I believe the max speed helmets are designed for is 12mph (or something). Often I am going faster. So logic would dictate that the time when I should wear a helmet (for it to actually be effective) is off-road when riding slowly. This is the time I least feel the need to wear a helmet. I maintain that unless helmet manufacturers certify their helmets as offering protection against being hit by cars, the fact that a victim of a traffic accident was or was not wearing a helmet is completely irrelevant.

2 - The argument offered in response to the first point is that in the event of a crash wearing a helmet is better than not. This is true, but true for all activities. Logic would dictate that I should wear a helmet on occasions where there is a high risk of head injury, and statistics seem to say that cycling is low down that list - below walking and driving. So if I should wear a helmet just because it is better than not, then it is irrational for me not to wear a helmet when driving or walking.

3 - Despite the fact that the above shows that wearing a helmet is irrational, and leaving aside questions of whether helmets can actually worsen head injuries/reinforce the 'dangerous' image of cycling or whatever. I still feel I should wear one, and always do (despite having a fine collection of cycling caps).

because obviously our good policefolk need to be made fatter and slower, otherwise it is just unfair.

One time I was having some chainline issues and wondered if switching to a different cog would help matters. I wondered down to brixton cycles, where the dude let me try a cog, offered me tools to change it (but I had brought my own) plus grease, let me change it over and ride down the road an back, before deciding it the gearing was too low (they didn't have the 18t in stock), and taking it off again, deciding that my original cog was fine after all. The guy was still smiling and joking around as I rode off after I wasting a half hour of his time, trying a part I didn't buy and spending a total of 0 pounds (and its not even like I was a regular having only been in there a couple of times ever).

Not only did that make it the bike shop I would most like to spend money in in future, but I also feel compelled to repeat this story on any given opportunity and to recommend them to others.

ditto to hippie's comment.

I am always suspicious when people say they stretch a chain in a short amount of time. As I understand it, chains stretch through wear which occurs over time. If you are strong enough to actually physically stretch the chain, you should probably be considering a late bid for the olympic team. But I stand ready to be corrected.

yeah, I'm not a stalker honest, but that bianchi was pretty distinctive.

yeah, why the hatin? for the money I paid, mine rock

hey. Bike looks good, I think I saw it in the flesh around store st with a londonfgss spoke card, or am I imagining it? Did you used to have a red bianchi? (I am at uni round the corner so pass by there lots)

didnt feel a thing

but I live on a boat. So I guess I wouldnt really.

how big is your thumb in that picture? could you show it with somethign else to give a sense of scale?

I rode home for xmas on an '83 claude butler dalesman. front panniers were 15l each and the rear were 25l each giving me 80l total. I also had a sleeping bag on top of the rack. Plenty of room and awesome to ride with.

If you can't get a rope into one pannier, you could do a large coil that went over the rack with the ends in each pannier.

group buy rear disc wheels complete with 'one less car' logos.

group buy arrospokes (please)

I think I read somewhere that the police have never given out a fixed penalty notice for a bar being in a cycle lane or ASL.

I once asked a cycle cop who pulled up next to me to have a word with a van parked in the cycle lane up ahead. He said he wasnt even sure he was able to. Good to know its not just car drivers who are ignorant of the law.

yo.

To get the safety lever off you need to disassemble the whole brake. There is a key screw in the middle somewhere. I just had to do the same thing so It can be done, you just have to dismantle and rebuild it.

if you are on the road, it can be quicker to carry a spare tube, then repair the punctured one when you get home.

StarrerGang (Danzel)
(In engineering countertightning of a nut is always done on the same thread)
Could I skidd with that setup ?

yeah. I never got this either. One time I was stripping the cylinders off a marine diesel engine. They were held in place by these big bits of metal studding. One one stuck so to get it off we threaded on two nuts and applied serious amounts of torque to the lower one, including whacking it with a hammer (thus applying 'shock' forces, presumably similar to skidding). The upper one didnt move at all. And as I understood it, this technique is used reliably in other situations as well (as suggested above).

Now, Im not advocating it, and a proper fixed lockring will always be better. But I do wonder why counterthreading like this doesnt hold up with bikes.

Flipside, if the lockring is not secure, and the loctite is doing the work, then why use a lockring at all?

out of interest, why? Is this specific to goldtechs?

actually, what causes tugs to be necessary at all? presumably to avoid the axle moving forward, but what kind of factors cause that?

Genuinely curious because its never been a problem for me, but some people consider them invaluable. Im just wondering what makes the difference.

SküllheadWilderness Seems a cool way to secrete a pump if you don't want to carry it elsewhere.

I've got a better idea:
Why can't someone invent a mini canister thing that isn't use-once-only? Like a refillable compressed-air canister that you can use with a proper big bastard pump at home, to fill up and take with you. I just thought of it the other day. (c) copyright 2007 me me me.

+1. can't believe it hasnt been done

Im not an expert, but I generally think that chaintugs are not usually necessary. Though they can be convenient for, eg not needing to fiddle with the wheel too much when sorting out a flat.

I have never used them, and Im rockin stock pista nuts always done up with a li'l old dumbell spanner, and I dont crank down that hard, and nothing ever moves.

I would say, ride it, if your wheel slips around a lot, buy some tugs. If not, then don't and be happy.

this happened to me. I took it back to the shop and got a new hub and the wheel 'handbuilt' (spoke broke within a month).

Anyhow, the root cause of the whole thing was the cheap-ass stock pista lockring cracked, which demolished the thread. So I would advise adding a decent lockring to your list of new stuff to buy.

hope this helps

slope.................................(sorry)

hope this helps

pj whatever the epistemology or accuracy

not wanting to be a smartass, but I think you meant etymology. Im not sure this would be covered by a theory of knowledge.

really, it sounds like you have made your choice already and you are just looking for validation.

I have no experience with either. Based on your description I would go with the chrome.

hope this helps.