Numpty IM Bike Thread

Bike ponces only welcome if they don't speak in tongues

11,641 to 11,660 of 11,980 messages
21/08/2012 at 22:51

Thanks Trogs and IronCat. Will now look at final amount of pennies in the piggy bank. I feel the need for some retail therapy and the best sort is sport related.

IronCat5    pirate
22/08/2012 at 14:05

Front of bike was creaky yesterday, found headset loose AGAIN. Stripped it down, rebuilt it. The went to tighten stem bolts (5-8Nm). 1/4 tunrs on each until got to 5Nm on one, fine. Other bolt sheared before the torque wrench popped.

Did what I could (cutting/drilling) and have trashed the stem. Feck Feck Feck. New stem on order from PX. WTF does the headset keep coming loose?

22/08/2012 at 14:08

is it a PX one??  if so - cheap crap 

maybe the star nut needs replacing??  maybe it's slipping a bit??

Edited: 22/08/2012 at 14:09
IronCat5    pirate
22/08/2012 at 14:48

The bike or HS? Both are PX!

22/08/2012 at 14:53

deosn't matter - cheap crap....  

get the LBS to take a look as I suspect the star nut is where the problem lies.  and as for shearing a bolt - cheap crappy bolts!!  replace with decent ones...

23/08/2012 at 02:33

Sheared the screw at 5-8Nm ??? Whoever fitted it initially stretched it with way over 5-8Nm. Regarding the headset, which screws are you tightening 1st ? Do not tighten the side pair until you have taken all the vertical "slack" up with the star nut screw.

23/08/2012 at 12:58

5-8Nm is barely more than finger tight isn't it??   

Dustboy    pirate
23/08/2012 at 15:31

I have a spare stem, brand new, never used, cost me 35 quid I think. I THINK it's 100mm. That or 75mm. Pretty sure it's a Deda but would need to check. Any good?

23/08/2012 at 19:31

Yes FB, hey Dboy thats an inch difference The dimension is from the centre of the big hole at one end to the centre of the other big hole down the other end, in technical terms that is

IronCat5    pirate
23/08/2012 at 22:33

Replacement arrived this morning - thanks anyhow DB. I decided that the thread wasn't too damaged on the old one so rode it last night (with new fasteners. 5Nm reached easily). Will change it out though for the sake of safety,

I have some thoughts on root cause, certainly as the old stem was tightenend it seemed to creep up the steerer.

23/08/2012 at 23:52

I'm confused now, is it the thread in the stem thats stripped or the screws that have sheared ? Stem "moving up the steerer" have you got the correct spacers in place ?

IronCat5    pirate
24/08/2012 at 09:06

The stem thread was nicked whilst drilling ouyt the sheared fastener.

All correct spacers in place.

24/08/2012 at 09:11

IC - what happens when it's all tight, you hold the brakes on and you rock the headset back and fore??  it shouldn't move at all if it's set up right.  if there's any play then it's the headset that's not tight enough (but never overtighten) or you don't have enough spacers - even 1mm missing will make difference.   or it still could be the star nut moving during use 

Edited: 24/08/2012 at 09:12
IronCat5    pirate
24/08/2012 at 13:20

FB - when it is all tight, there is no play. So I'm happy (with new stem now). Ensured there was enough space under cap to pull the lot together. I checked to torque on the steerer bung (not SFN) and it was where it should be. have moved a spacer above the stem too.

What I found t'other day was I could preload the cap (no play in HS), tighten the stem clamps, and it would be loose again. It's possible that with the stack loose there was adequate clearance under the cap, but when tensioned the clearance reduce causing the top cap to contact the steerer. The stem used to be the top-most item in the stack following my bike fit last year.

24/08/2012 at 13:33

yeh - you need a tiny gap between the top stem component and steerer so the cap can be pressured down to pull the whole stack together.

see how it goes

 

12/09/2012 at 23:01

Ok I will readily admit that this question is nothing to do with road bikes

I have recently bought this bike for my 'commute' to work

http://s3.runnersworld.co.uk/members/images/200439/gallery/vikki.jpg?width=350

 And yes, I have gone and got the wicker basket for the front

However, because I have the basket (one of those that are bracketed to the handlebars so the basket itself is detachable), I cannot have front lights on the handlebars.  So I have bought a retro-style bullet light that attaches to the bike with a swan-neck bracket through the hole in the front fork.

This is what it looks like fitted....

http://s4.runnersworld.co.uk/members/images/200439/gallery/vikki_light5.jpg?width=350

 I am not 100% sure that the light is not pointing too far down, but there is no way I can change its fitting as the swan-neck bracket is too short for it to be anything else.

I have googled all night trying to find a stockist of a longer bracket but am not coming up trumps.

Does anyone have any ideas as to where I can get a slightly longer swan-neck bracket from?  Failing that, any ideas how I can slightly raise the light so that it's not pointing to the ground so close to the bike?

Thanks

 

13/09/2012 at 07:45

You actually bought that bike??

13/09/2012 at 07:52

Yes, I did and I love it!

Have always wanted a good ol' sit-up-and-beg style bike but could never jutsify adding another bike to the collection.  But walked into Halfords one day to buy some windscreenwipers and came out with the bike

IronCat5    pirate
13/09/2012 at 09:16
Schmunkee - The List Fairy wrote (see)

Yes, I did and I love it!

Have always wanted a good ol' sit-up-and-beg style bike but could never jutsify adding another bike to the collection.  But walked into Halfords one day to buy some windscreenwipers and came out with the bike

Typical woman! I bet it was in a sale too. How much did you save by buying it? 

Iron Muffin    pirate
13/09/2012 at 09:18

Great bike.

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