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Had another look at it and I'm pretty sure it's the tyre seating - it's kind or rising and twisting slightly around the valve area. I guess that I just have to deflate it fully and see whether I can get it to sit straight, and stay straight as i pump it up.
Though I tore fingernails getting the tyres on in the first place, this is the first time I've had a serious problem with the Marathon Plusses. I did have one blow off the rim on one of my fiancee's bikes though, with my head about an inch from the bubble too! Different size completely, though.
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The goggles are because of high steam pressure means the isht can explode in ya face any minute. Not to forget the small particles from the primitive fossile and exploitative bio fuel burning. Those nostalgisist aesthetesist w******* who are longing for a past that never was should keep in mind that society was advanced enough to have "punks" nor earlier than 70's and in the steam era a "punk" would have been starved, lynched or in prison.
On a lighter note, here's jokes thread mad bike names thread litte joke for you:
I call one of my bikes "Tim Burton", anyone can guess Y?A punk would have been lit - it's the gunpowder fuse on old matchlock muskets.
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I haven't noticed any up-and-down movement in the wheel, though the tyre does seem to rise and fall slightly as I spin the wheel. I'll try another tyre when I get home.
I'll try putting the wheel in again, it seems straight but I may be mistaken.
The frame is a Foffa Prima (I know) and though clearances are tight, it does fit a 700C - and 25s normally fit fine, though the marathon pluses have admittedly always been a couple of mm from the fork crown, tops.
My current new build is an old Falcon frame, originally for 27"s so I should have plenty of clearance in future! It's going to be a while before it's ready though.
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thanks for the suggestions!
Tyre is less than 6 months old, doesn't really look worn. Does have a couple of cuts but that's it.I haven't tried another tyre yet, but I was thinking about swapping back to the blizzards which I still have knocking about, if I can't work out how to fix this. It's rubbing on the brake right in the middle, in the apex of the horse-shoe shape formed by the brake arms (dual-pivot). It basically looks exactly like the tyre just doesn't have clearance, except that it's always been fine in the past, even up to 115psi.
I also wondered if it might be wheel true. The wheel looks as if it might be a tiny bit out of true side-to-side, can it also go out of true in-to-out?
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I've UTFS but not found an answer to my precise problem.
I've got a 700C bike which came with schwalbe blizzards (25s), and after a stupid number of punctures, I decided to swap for something really puncture resistant after getting a massive one on the towpath one day. I went for 700X25 Marathon Plus and though they are not super for acceleration, I haven't had a puncture since - which is nice. This weekend, I pumped my tyres up to pressure and the front tyre started rubbing the brake quite badly - not consistently though. It's never done this before and I have had the tyres up to full pressure. It looks like the tire might be seated slightly unevenly. I've tried deflating it, worrying at it to re-seat it, and then pumping it back up, but once I get above about 60psi, I have the rubbing issue.
Anyone had a tyre that used to fit and suddenly doesn't? Any tips on getting the tyre seated really evenly and keeping it there as I inflate it?
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Thanks for the kind comments! Maybe it looks weirder in the flesh...Perhaps I should have put it in the porteur thread so Scoble could pass judgement! You can't see it from this picture but at some point I think the original owner pranged something - the forks are slighty bent back at the crown resulting in twitchy handling. Apparently there's a place on Mare Street that can straighten them which I think would make it handle better with a full basket.
The next build is planned to be a bare metal Falcon frame with a 1957 dyno-hub 3 speed and a front dyno hub - lights up the wazoo, and definitely more Frankenrat!
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OK, I promised my frankenbike submission, and here it is - my girlfriend's build:

There's a variety of mods to it - dynamo hub, 27" alloys instead of the original steels, etc. I think the thing that tips it into frankenbike territory is probably the headlight which I ended up having to mount in the front of the basket. Kind of makes me think of:

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Christoph Waltz Trololololo (Oscar Winner 2010) - YouTube
Those are some mad skillz. And that guy is a bonafide genius. I had forgotten the jibe at Bavarians at the end.
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it reminds me of the driver who crashed into me when i was waiting at a red light. her first words to me were "you cyclists are all so dangerous, look you are not even wearing a helmet!"
like a helmet was really going to offer me any protection from her crashing into me.
It's that kind of comment that really makes my blood run cold though - because it clearly indicates the thought processes going on behind the wheel are not those of the sort of person who can take responsibility for driving a car.
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This is beautiful.
I will have a build to post here soon. I've built a 5 speed 'shoppeur' for my missus - which has ended up a bit frankenbiked due to the difficulty in getting a mizoura king junior front rack and a busch and muller retro front light to occupy the same position in 3-dimensional space...I did finally get it to come together last night, bolting an l-bracket into the wooden base of the rack and then bolting the lamp body to that. Looks freakish though.
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What if there was a car coming out of the sideroad on the right and they were looking in the direction they expected oncoming traffic to appear from? Yeah alright you're supposed to stop at the give-way line, but on a straight stretch of road like that a lot of drivers will just inch forward because they don't expect some nutter to be driving up the street on the wrong side. Dude in the BMW was going too fast to have been able to react in time if something like that had happened. It's still dangerous driving even if it passed without further incident.
Saw the opposite of this today - a woman pulling out of a side road to turn right, but only checking that the destination lane was clear. I hit the anchors, the cyclist a few feet ahead of me started screaming and swerving (he was fine, kept going), and old lady in car stopped in the middle of the lane, starts having a minor panic attack and repeating "sorry, sorry". I was a bit concerned that she was going to go into shock. Before I could check that she was OK, some dickhead finds the button for his horn.
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Me, this evening (9.15), cycling along the canal beside Hackney Marshes, underneath the Mandeville st bridge here - http://maps.google.co.uk/maps?q=lea+bridge+road&hl=en&ll=51.557876,-0.038248&spn=0.003962,0.00927&num=100&safe=off&client=safari&t=h&z=17
I could see a couple of black youths, 14-16 years old, on the path ahead as I was cycling along. As I passed the big one, about 6'2" and 14-15 stone, (pretty distinctive to be that size, at that age, so hopefully the police will be aware of him) he stood in front of me and pulled me onto the floor, swearing, and trying to take my bike off me. I pulled the bike back, got up, and went into attack mode, shouting and fucking swearing at the fucking cunting fuck. At this point he seemed to realise that this was going to be more effort than he thought, backed off, then went away over the bridge into the Kingsmead.
Reported it to the police.
Cunts.
That's exactly where I got rolled in May last year. Police were fucking useless too - the controller at the phone centre refused to send someone out until I told her what road I was on, which was helpful as I was not actually on a road. Then she sent the cops to a road about 500 metres away.
The stretch of path there is ideal for ambushing people as it's the only area for a long way in either direction where you can hide in the bushes directly by the path. Elsewhere there is fencing. Then there is the easy escape route into the estate via the little footbridge. There appeared to be a spotter on the bridge when I was jumped.
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^ on the same day this happens. http://www.bbc.co.uk/news/business-14102750
fuck em all to hell in a fucking handbasket made of shit. tory fucks.
Yep, Big Society in action, that one!
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Crafty Butcher - 3%
RPM - 3%
Tiswas- 3%
CYOA - 5%
neu - 5%
Hatbread - 6%
sohi - 8%
Dammit - 8%
Chriscofferson - 8%
Nick Nack 11%
'swine 11%
Eamesy - 14%
Fade - 14%
rg37 14%
Rik - 14%
sumo - 14%
deerfaced - 19%
Spotter - 19%
Wen Jian - 19%
Crispin Glover - 20%
Alkali - 22%
OmarLittle- 24% (must try harder)
Oz - 24%
MotherGirl - 27%
khornight - 27%
Sorethroat - 27%
Tenderloin - 27%
wpo750 - 30%
nuknow - 30%
Laner - 32%
Xanderh - 38%
Nahguavkire - 38%
Scoot - 54%
Mobidog - 57%
EEI- 62%Only one fifth dickhead, but I do get a bit OCD sometimes so I tidied up Tiswas and Nhaguavkire.

Cool tip, thanks! I'll try that. And yes, user error is about right. I am going to Hackney Cycle workshop when I can, trying to learn that way.