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It was a 1FG Ultra, which was designed to be a singlespeed- vertical dropouts with an eccentric bottom bracket to put tension on the chain.
Both wheels are 700C- my camera/shooting angle have made the front look smaller.
The tyres are both Conti GP4000's.
I bought the front wheel off a member of this forum, sadly I do not know his handle- he rides a Mercian if that helps?The rear hub is a 135mm surly, now with a 13 tooth dura-ace sprocket as the 18 tooth surly in the picture was a little too "spinney".
The frame is bare polished alloy that has been clear lacquered to prevent oxidisation.
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Apologies if I have put this in the wrong place.
[img=http://img257.imageshack.us/img257/473/bikeql0.th.jpg]
Also if anyone could give me a steer on how to post a decent picture that would be good- I clearly do not have the hang of the search function...
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eeehhhh 1) I'd check that the chainline actually is straight before doing anything else. Measure it with a ruler. Sheldon Brown's has more info: http://sheldonbrown.com/chainline.html
I have used Sheldon as my main reference work, and according to the ruler the chain line is spot on
2) How's your chain tension? About 1/2 inch of vertical play
Check
3) Lubed up properly?
Brand new chain, covered in factory lube- reckon it needs more?
4) Is the wheel straight in the dropouts? Cog could be at an angle.
Dead straight- vertical dropouts on this bike
5) If you can't get the chain tension even, take off the chain ring, check it's flat on a flat surface. Bend it carefully if it isn't. Put it back on again. If it's still binding, i.e. tight in places, loosen chainring bolts, tighten them up evenly again.
Might have to do this- not sure that it is binding though, it does not seem to have any tight spots in the pedal cycle?
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The chain is sitting slightly to one side on the chain ring but I put that down to it being a nine speed width chain ring with a 1/8th inch chain, plus the bash ring doubtless is not helping!
The grumbling noise is coming from the rear sprocket, not the front, which is why I am confused.
The cranks and chain ring need to be changed anyway, but first I need to find a 104bcd 38 tooth 1/8th inch chain ring- any ideas?!
I quite fancy Shimano Saint cranks, more for the incongruity of them on the bike than anything else... -
Hi all, first post and I am asking some advice!
I have now got my bike built up pretty much as I want- much time and head scratching was spent on chain line, which I think is now pretty much spot on.The issue now is that even though the chain looks straight when the bike is in the stand and I turn the pedals the chain "grumbles" as if it wants to shift to another gear- which is an issue as it only has the one...
The setup is a Surly flip flop hub, 13 tooth Dura-Ace track sprocket, Truvativ Isoflow cranks with a 38 tooth ring, and a SRAM 1/8th inch chain.
Ideally I'd like to ride it into work tomorrow, but as this is the first fixed gear that I have a) built, and b) ridden I would like that noise to go away before I do!
The frame was originally finished in brushed alloy with a clear lacquer. When I got it off fleabay it had been sandblasted, undercoated, then painted black.
The finish was pretty knacked- the ebay advert said that it "could do with a respray", I got bored one day and went to the local DIY shop for some nitromors...
Obviously my inspiration was the radiator- well spotted "me"!
The polishing was done once I had taken all the paint off, I used a little two man band called AC Metal FInishers down in South Bermondsey.
Total cost to have the frame polished and lacquered was £100.