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GSB":16b5ihxj said:
You say that with a straight face, on a site devoted almost entirely to old bicycles??
Newbie Marin Bike Help
- Thread starter shrewedpunter
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You say that with a straight face, on a site devoted almost entirely to old bicycles??
marc two tone
Retrobike Rider
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Re:
I find it's always better to totally strip it and inspect each bit.
This way you can find potential problems earlier, like a seized bottom bracket, weak cantilever spring etc...and, it's cleaning by hand that helps you get to know each part and how it works. I particularly like making sure cables are travelling through the outer cables smoothly, clicking through the gears whilst keeping tension by hand to feel the indexing. This tests the shifters too by making sure the teeth inside can hold tension. front mech springs are strong! No wonder shifters pack in so quick, they work hard.
On bottom brackets, remove the cranks before deciding how smooth the existing one is, it's a deciptive thing as the cranks make the spindle easier to rotate.
Use WD40 on mech pivots, or cables but anything more load bearing such as wheel bearings, headset, BB threads, quill stem, use a decent grease.
Yes, the chainset(100gs by the looks of it) are heavy and clunky, easily upgraded (cheap) using exage 3/4/500LX, deore LX and suchlike. stick with that genre too so you can keep your chainline and 122mm bb. Front mech maybe but it should work ok.
I find it's always better to totally strip it and inspect each bit.
This way you can find potential problems earlier, like a seized bottom bracket, weak cantilever spring etc...and, it's cleaning by hand that helps you get to know each part and how it works. I particularly like making sure cables are travelling through the outer cables smoothly, clicking through the gears whilst keeping tension by hand to feel the indexing. This tests the shifters too by making sure the teeth inside can hold tension. front mech springs are strong! No wonder shifters pack in so quick, they work hard.
On bottom brackets, remove the cranks before deciding how smooth the existing one is, it's a deciptive thing as the cranks make the spindle easier to rotate.
Use WD40 on mech pivots, or cables but anything more load bearing such as wheel bearings, headset, BB threads, quill stem, use a decent grease.
Yes, the chainset(100gs by the looks of it) are heavy and clunky, easily upgraded (cheap) using exage 3/4/500LX, deore LX and suchlike. stick with that genre too so you can keep your chainline and 122mm bb. Front mech maybe but it should work ok.
shrewedpunter
Dirt Disciple
Re:
I have purchased the chainset from shed..
However i'm having issues getting the bastard off..
Got the bolts off both sides easy enough but somehow still nothing will budge.
edit: Disregard that.. I've ordered the correct tool
I have purchased the chainset from shed..
However i'm having issues getting the bastard off..
Got the bolts off both sides easy enough but somehow still nothing will budge.
edit: Disregard that.. I've ordered the correct tool
legrandefromage":16ub4sa0 said:
Yes, completely straight...
...although in my defense I was commenting in shock that the owner of said bio-pacey weirdness, who is a self confessed newbie to the joy of old bikes and here for some good advice, was being urged to chuck this retro oval oddity in the nearest skip because it's a bit heavy. Surely it's unique design and relative rarity afford it a grander fate than that?
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The 100GS chainset is just a lump of very slightly oval shape iron that should be cast into the nearest recycling skip.
artsyfartsy
Dirt Disciple
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That is one of the heavy clunky crank and sprocket sets Shimano made. I don't think that's Deore or XT either. Looks like a cheapie model. I'm guessing somebody swapped it out in the past. You can go on e bay and find a suitable period correct lightweight crank and chainring set up relatively inexpensive. With a little love that should be a nice bike. Nice find, especially for the price. It gives you wiggle room for making it top notch if you decide to do so.
That is one of the heavy clunky crank and sprocket sets Shimano made. I don't think that's Deore or XT either. Looks like a cheapie model. I'm guessing somebody swapped it out in the past. You can go on e bay and find a suitable period correct lightweight crank and chainring set up relatively inexpensive. With a little love that should be a nice bike. Nice find, especially for the price. It gives you wiggle room for making it top notch if you decide to do so.
artsyfartsy
Dirt Disciple
Oops, I forgot to answer the question you asked earlier about lube. I find tri flow or any Teflon based lubricant to be the best in my opinion. Teflon based lubes are not as messy as straight oil based lubes and tend to reduce wear in the long run.
shrewedpunter
Dirt Disciple
Re:
I keep ordering things every day when i realize i need them.
Today i had to snap the chain in 2 just to get it off.. I don't have a chain repair tool and i cba waiting for amazon to deliver one.
Typical new years day there's no post.. :roll:
I'm gonna have to wait a few days before i can really get some proper work done. Still waiting for my crank remover tool from amazon..
Today i checjked out the shifters and they are not in a great state at all. I think i'll order these: http://www.amazon.co.uk/gp/product/B00I ... d_i=468294
what u guys think?
Gonna have to order a new chain as well.. or do i get down to halfrauds to get ripped off?
Oh yeah.. still waiting for my new tyres and inner tubes.. they were dispatched today.
Oh year i bought a sugino chainset from crank so i've got that to arrive
hate royal mail
I keep ordering things every day when i realize i need them.
Today i had to snap the chain in 2 just to get it off.. I don't have a chain repair tool and i cba waiting for amazon to deliver one.
Typical new years day there's no post.. :roll:
I'm gonna have to wait a few days before i can really get some proper work done. Still waiting for my crank remover tool from amazon..
Today i checjked out the shifters and they are not in a great state at all. I think i'll order these: http://www.amazon.co.uk/gp/product/B00I ... d_i=468294
what u guys think?
Gonna have to order a new chain as well.. or do i get down to halfrauds to get ripped off?
Oh yeah.. still waiting for my new tyres and inner tubes.. they were dispatched today.
Oh year i bought a sugino chainset from crank so i've got that to arrive
hate royal mail
weeman_mtb
Retrobike Rider
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Re: Re:
Oh and the cheap chains are £4 from Asda, Tesco did sell them but recently sold them off cheap and I bought them...........all of them! viewtopic.php?f=16&t=260105 :xmas-wink:
Good advice, the grease in these old shifters goes quite stiff with age so a good soaking with something like WD40 will probably get them working again. I wouldn't recommend trying to take them apart beyond removing the covers, unless you're very confident with fiddly, springy bits. If you haven't ordered those shifters on Amazon I'd have a go at this first, half the fun of fixing old bikes is getting the old stuff working again IMO.shed":31rntqxj said:
Oh and the cheap chains are £4 from Asda, Tesco did sell them but recently sold them off cheap and I bought them...........all of them! viewtopic.php?f=16&t=260105 :xmas-wink:
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