Thread To Tell Everyone What Fettling You've Just Done

ketsbaia

Looks like the frame might be slightly bent at the drop-out, which is going to mean either taking it to the bike shop to see if they can sort it by faffing with the rear mech so it doesn't touch the spokes in the highest gear or, alternatively, a new frame.

Bugger.

optimisticbiker

ketsbaia wrote:

Looks like the frame might be slightly bent at the drop-out, which is going to mean either taking it to the bike shop to see if they can sort it by faffing with the rear mech so it doesn't touch the spokes in the highest gear or, alternatively, a new frame.

Bugger.

If its only slight they should be able to sort it by cold bending of the frame, although not all LBS will attempt it/have the skills...

davis

@DrLex: Thanks!

After a splash around Queen Elizabeth Country Park on Saturday, I cleaned the worst of the mud off the MTB at the local jetwash (the horror, the horror), so I spent today cleaning it properly and regreased the headset (got a bit carried away with the water hose!).

Agent57

Added a mount for my Garmin Edge 205 to the Brompton, so I can start doing some Strava segments on the commute.

veronese68

In between a load of DIY, I pottered about in the man cave. Finally got round to fitting some Chromoplastics to the rigid MTB. Got the rear on with a small amount of modification. Angle grinder to trim the stays may be slight overkill. Start on the front and they've missed off a bracket. There are V shaped stays but only one bracket to attach them to. Feck, feck, feckity feck. They've missed out the bottom one. I considered fitting it with just the one bracket but the bottom would flap around as it's unsupported. It would have been better if they'd missed the upper one. Problem is I bought them online as they were discounted and I can't remember who from. D'oh!!!

Initialised

Old chain back on until cassette and cranks arrive, new one skips like that bloke on the BGT sponsor thing :groan:

Mental note: must check for chain stretch more often when the new cranks are on.

Twostage

After the week of downpours which caused the rear brake callipers to seize I've done them and the steerer bearings. The steerer tube was actually dripping wet. Managed to only loose two bearings - one from the top and one from the bottom. Found the one from the top (recognised it because it was still silver, bottom ones are brown) after re-assembly.
New bearings ordered.

cjcp

Anyone ever tried securing the seatpost on a temporary basis using a jubilee clip?

It's a bit unconventional, but I've rounded off the bolt in the seatpost clamp and the saddle's slipping badly. I grabbed a jubilee clip this morning to fit for the journey home, in case this might work. I'd put insulating tape between the frame and the metal, and cover the clip with more of the said insulating tape so it doesn't look quite as inelegant, but any thoughts on this? Going to collect a new clamp tomorrow.

tgotb

cjcp wrote:

Anyone ever tried securing the seatpost on a temporary basis using a jubilee clip?

It's a bit unconventional, but I've rounded off the bolt in the seatpost clamp and the saddle's slipping badly. I grabbed a jubilee clip this morning to fit for the journey home, in case this might work. I'd put insulating tape between the frame and the metal, and cover the clip with more of the said insulating tape so it doesn't look quite as inelegant, but any thoughts on this? Going to collect a new clamp tomorrow.

I don't think you'll do any harm, but I suspect it won't work very well either, as a jubilee clip doesn't have the same mechanical advantage. As a crude guideline, you need to take the torque you'd normally apply to a seatpost clamp bolt, and multiply it by the ratio between the thread pitch on the seatpost clamp's screw and the thread pitch on the jubilee clip (guessing 3:1 or 4:1). If you can apply this torque to the jubilee clip you should be fine, but I suspect you'll struggle.

Another approach might be to clamp the jubilee clip around the seatpost itself just above the frame. Possibly more danger of damaging the paintwork on your frame this way though, and very hard to protect it with tape. Maybe a combination of the existing seatpost clamp and jubilee clip on the seatpost itself? If your seatpost clamp is like mine, it'll just knacker the paint on the clamp itself (which you're planning to replace anyway)...

cjcp

TGOTB wrote:

cjcp wrote:

Anyone ever tried securing the seatpost on a temporary basis using a jubilee clip?

It's a bit unconventional, but I've rounded off the bolt in the seatpost clamp and the saddle's slipping badly. I grabbed a jubilee clip this morning to fit for the journey home, in case this might work. I'd put insulating tape between the frame and the metal, and cover the clip with more of the said insulating tape so it doesn't look quite as inelegant, but any thoughts on this? Going to collect a new clamp tomorrow.

I don't think you'll do any harm, but I suspect it won't work very well either, as a jubilee clip doesn't have the same mechanical advantage. As a crude guideline, you need to take the torque you'd normally apply to a seatpost clamp bolt, and multiply it by the ratio between the thread pitch on the seatpost clamp's screw and the thread pitch on the jubilee clip (guessing 3:1 or 4:1). If you can apply this torque to the jubilee clip you should be fine, but I suspect you'll struggle.

Another approach might be to clamp the jubilee clip around the seatpost itself just above the frame. Possibly more danger of damaging the paintwork on your frame this way though, and very hard to protect it with tape. Maybe a combination of the existing seatpost clamp and jubilee clip on the seatpost itself? If your seatpost clamp is like mine, it'll just knacker the paint on the clamp itself (which you're planning to replace anyway)...

The clip could sit above, and rest on, seatpost clamp, so the clip would be around the seatpost. If I put tape around the pots first, will the clip lose a little of it's grip because the post will slide under the tape, so to speak?

davis

cjcp wrote:

Anyone ever tried securing the seatpost on a temporary basis using a jubilee clip?

It's a bit unconventional, but I've rounded off the bolt in the seatpost clamp and the saddle's slipping badly. I grabbed a jubilee clip this morning to fit for the journey home, in case this might work. I'd put insulating tape between the frame and the metal, and cover the clip with more of the said insulating tape so it doesn't look quite as inelegant, but any thoughts on this? Going to collect a new clamp tomorrow.

Don't know what your bottom bracket is, but is there an option of stuffing some sort of rod (allthread, or something like that?) into your seat tube and using that to take your *ahem* featherlike-weight? Really not sure you could do a jubilee clip up tightly enough, I'm afraid.

Edit: I obviously mean this in addition to the clip; the rod to take the weight, and the clip to stop the seatpin from twisting lots.

tgotb

I doubt it; I'd be inclined to try exactly what you just described.

When you're tightening the jubilee clip, remember that the coarse thread reduces your mechanical advantage, so you'll struggle to overtighten it.

Or just MTFU and ride home out of the saddle :-)

cjcp

davis wrote:

cjcp wrote:

Anyone ever tried securing the seatpost on a temporary basis using a jubilee clip?

It's a bit unconventional, but I've rounded off the bolt in the seatpost clamp and the saddle's slipping badly. I grabbed a jubilee clip this morning to fit for the journey home, in case this might work. I'd put insulating tape between the frame and the metal, and cover the clip with more of the said insulating tape so it doesn't look quite as inelegant, but any thoughts on this? Going to collect a new clamp tomorrow.

Don't know what your bottom bracket is, but is there an option of stuffing some sort of rod (allthread, or something like that?) into your seat tube and using that to take your *ahem* featherlike-weight? Really not sure you could do a jubilee clip up tightly enough, I'm afraid.

Edit: I obviously mean this in addition to the clip; the rod to take the weight, and the clip to stop the seatpin from twisting lots.

I have visions of a broom and, well,

Thanks, chaps. Will pop down this afternoon. Suspect some will ask WTH I've been doing when I return looking like a miner.

veronese68

cjcp wrote:

The clip could sit above, and rest on, seatpost clamp, so the clip would be around the seatpost. If I put tape around the pots first, will the clip lose a little of it's grip because the post will slide under the tape, so to speak?

I wouldn't put any tape on the post, it'll allow the clip to slip as you say. Clean any grease off the bit with the clip of course. Got loads of jubilee clips here, what size would you like?

cjcp

Veronese68 wrote:

cjcp wrote:

The clip could sit above, and rest on, seatpost clamp, so the clip would be around the seatpost. If I put tape around the pots first, will the clip lose a little of it's grip because the post will slide under the tape, so to speak?

I wouldn't put any tape on the post, it'll allow the clip to slip as you say. Clean any grease off the bit with the clip of course. Got loads of jubilee clips here, what size would you like?

The post is 31.6mm. I'll see if this clip I have fits. If it doesn't, mind if I pop round later?

veronese68

cjcp wrote:

Veronese68 wrote:

cjcp wrote:

The clip could sit above, and rest on, seatpost clamp, so the clip would be around the seatpost. If I put tape around the pots first, will the clip lose a little of it's grip because the post will slide under the tape, so to speak?

I wouldn't put any tape on the post, it'll allow the clip to slip as you say. Clean any grease off the bit with the clip of course. Got loads of jubilee clips here, what size would you like?

The post is 31.6mm. I'll see if this clip I have fits. If it doesn't, mind if I pop round later?

No problem. I'll take a handful home with me.

cjcp

Cheers, sir.

MonkeyMonster

cjcp wrote:

I have visions of a broom and, well,

Thanks, chaps. Will pop down this afternoon. Suspect some will ask WTH I've been doing when I return looking like a miner.

It'll be fine ,they do know you're welsh?

itboffin

more like fettling i've forgotten to do, change the change I had to emergency shorten last week - could have been nasty this evening good job I was struggling up a hill looking down and noticed the rear mech rather far forward.

gtvlusso

Note for Charge 'masher' chains - they are bloody noisy until stretched!!

Seriously noisy, now settled since it has stretched a bit and been re-tensioned.

Wrath Rob

First ride on the commuter after changing the drive train to 10 speed. The new chainset makes a massive difference! Makes the whole bike feel soooooooo much nicer. And it all seems to work well, despite me having finished the assembly after a few pints in the pub.

bails87

My chainset has picked up an annoying habit of firing the chain off the outside off the big ring. Not just dropping off, but going with a clean 'ping' like the kind of thing you get from a crisp, clean downshift. Sometimes happens when shifting, sometimes when just spinning along. Luckily it hasn't yet happened when standing up and stamping.

Tried to fix it last night. It didn't go well, and I'm usually good with the drivetrain. It now drops off the inside of the small chainring when trying to shift up. I push the lever, feel it bite as it starts to shift, release the lever and despite the mech obviously staying in the 'big ring' position, the chain drops back down, skips over the small ring and into the frame, leaving me pedalling air. On a busy roundabout. Twice :evil:

It also still goes off the outside.

~
Still, I got the rear shifting cleanly....ish.

GAH! :roll:

il_principe

Fitted a pair of Vittoria Open Corsa CX II's to the Zipps, along with latex tubes. I've had a nightmare installing Michelin latex's before, but the Bontrager ones went in no trouble and the tires went on with thumbs only.



However, Zipp contrived to pack one wheel with Campagnolo Pads and one with Shimano pads:



So I couldn't head out for a quick spin as planned. Very frustrating. Have had to order a pair from PBK as I've got riding plans for the weekend and I doubt Wiggle's supplier is going to come up with the replacements in time.

In other news, Record brake shoes make removing old pads an absolute doodle. It's a fricking nightmare on my 08 Chorus!

rjsterry

bails87 wrote:

My chainset has picked up an annoying habit of firing the chain off the outside off the big ring. Not just dropping off, but going with a clean 'ping' like the kind of thing you get from a crisp, clean downshift. Sometimes happens when shifting, sometimes when just spinning along. Luckily it hasn't yet happened when standing up and stamping.

Tried to fix it last night. It didn't go well, and I'm usually good with the drivetrain. It now drops off the inside of the small chainring when trying to shift up. I push the lever, feel it bite as it starts to shift, release the lever and despite the mech obviously staying in the 'big ring' position, the chain drops back down, skips over the small ring and into the frame, leaving me pedalling air. On a busy roundabout. Twice :evil:

It also still goes off the outside.

~
Still, I got the rear shifting cleanly....ish.

GAH! :roll:

Bent rings or time for a new chain or both.

bails87

I hope not, probably ~1500 miles done on it. I check the chain regularly, which was below 0.75% wear, and I don't think I'm capable of bending the chainrings!

veronese68

Had a horrendous creak coming from the non-drive side pedal/crank area. Sounded like a dry joint somewhere that was reverberating through the frame. Looking down trying to see what was going on hit a huuuuge pothole and flatted my front tyre. Not too far from home so walked through Kingston to the comfort of my cave.
Finished faffing about with MTB's in states of undress then fixed my flat. Then stripped the pedal and crank, greased everything and put it all back together.
Bike was quiet as a mouse on the way in this morning, but I realised I'd left my pump at home. Curry after work tonight so I hope I don't get another visit. 3 in the last week, mainly flints.

rjsterry

bails87 wrote:

I hope not, probably ~1500 miles done on it. I check the chain regularly, which was below 0.75% wear, and I don't think I'm capable of bending the chainrings!

Doesn't need to be much out of true to start throwing the chain. Also, have the limit screws on the derailleur started to unscrew a little?

bails87

rjsterry wrote:

bails87 wrote:

I hope not, probably ~1500 miles done on it. I check the chain regularly, which was below 0.75% wear, and I don't think I'm capable of bending the chainrings!

Doesn't need to be much out of true to start throwing the chain. Also, have the limit screws on the derailleur started to unscrew a little?

I don't know, I backed everything off and started from scratch last night, but I didn't start til 10:30, so it was a rushed job, I'll have a proper go at it tonight.

UndercoverElephant

bails87 wrote:

rjsterry wrote:

bails87 wrote:

I hope not, probably ~1500 miles done on it. I check the chain regularly, which was below 0.75% wear, and I don't think I'm capable of bending the chainrings!

Doesn't need to be much out of true to start throwing the chain. Also, have the limit screws on the derailleur started to unscrew a little?

I don't know, I backed everything off and started from scratch last night, but I didn't start til 10:30, so it was a rushed job, I'll have a proper go at it tonight.

Check that the front mech is parallel to and about 2 mm higher than the big chainring when in the lower position (assuming a double chainset - probably would need to be shifted to the middle position on a triple).

rjsterry

bails87 wrote:

rjsterry wrote:

bails87 wrote:

I hope not, probably ~1500 miles done on it. I check the chain regularly, which was below 0.75% wear, and I don't think I'm capable of bending the chainrings!

Doesn't need to be much out of true to start throwing the chain. Also, have the limit screws on the derailleur started to unscrew a little?

I don't know, I backed everything off and started from scratch last night, but I didn't start til 10:30, so it was a rushed job, I'll have a proper go at it tonight.

That might be it: if you back off the limit screws, you'll allow the cage to swing further. +1 on UE's suggestion of checking the cage is true to the frame. Has the general area taken a bump recently?