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 Post subject: 1980s Centurion MTB
PostPosted: Thu Nov 14, 2013 9:00 am 
Old School Hero
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Joined: Wed Mar 16, 2011 5:20 am
Posts: 227
Location: Sydney, Australia
Picked up this 1980's Centurion mtb minus wheels today. Don't know much about the brand except that US triathlete Dave Scott used their road bikes to win a few Hawaiian Ironmans back then. Gearing is all Suntour, AG rear derailleur, friction shifters and dia-compe lookalike made in Chang Star cantilever brakes. Probably originally a fifteen speeder I guess. Frame I have been told is chrome moly with lots of surface rust and a stuck fast seat post.
It has all the classic sloping tube angles of that time but I don't know if this bike has much value. I plan to give it a budget respray and source some wheels to make it a run about but will take a while to complete.


Attachments:
centurion mtb.jpg
centurion mtb.jpg [ 113.21 KiB | Viewed 1674 times ]
File comment: After one and half hours waa la all parts removed except for the stubborn seatpost.
stripped.jpg
stripped.jpg [ 171.64 KiB | Viewed 1674 times ]
handlebars.jpg
handlebars.jpg [ 90.91 KiB | Viewed 1674 times ]
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 Post subject: Re: 1980s Centurion MTB
PostPosted: Thu Nov 14, 2013 1:24 pm 
retrobike rider / Gold Trader
retrobike rider / Gold Trader
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Joined: Mon Jun 22, 2009 11:09 am
Posts: 9464
Location: Devon
Nice. Love the bar and stem.


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 Post subject: Re: 1980s Centurion MTB
PostPosted: Thu Nov 14, 2013 10:56 pm 
Retro Guru

Joined: Thu Sep 01, 2011 5:11 pm
Posts: 1164
Location: Left Coast of Canada
It might make a nice 26 inch wheel porteur inspired city bike.


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 Post subject: Re: 1980s Centurion MTB
PostPosted: Fri Nov 15, 2013 1:58 am 
Retro Guru

Joined: Sat Jun 26, 2010 11:07 pm
Posts: 2073
Location: brighton
Didn't centurion become Diamond back?


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 Post subject: Re: 1980s Centurion MTB
PostPosted: Fri Nov 15, 2013 6:20 am 
Old School Hero
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Joined: Wed Mar 16, 2011 5:20 am
Posts: 227
Location: Sydney, Australia
Checked on Wiki and yes you are right that they became Diamond Back by the 90's and some of the original staff went on to form ParkPre bikes. There were so many brands around that period - good times.
No work today so had time to to start some paint stripping but the hard way with only a wire brush and sandpaper. Luckily the paint is so thin that it's comes off relatively easy and most of the rust is surface only. Going to do a cheap and cheerful rattle can paint job and thinking orange color. For some strange reason always wanted an orange bike!


Attachments:
handle bar rust removal.jpg
handle bar rust removal.jpg [ 150.1 KiB | Viewed 1575 times ]
File comment: Luckily only surface rust but the chrome's abit tarnished now
handlebar rust.jpg
handlebar rust.jpg [ 105.33 KiB | Viewed 1575 times ]
forks paint stripping.jpg
forks paint stripping.jpg [ 143.81 KiB | Viewed 1575 times ]
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 Post subject: Re: 1980s Centurion MTB
PostPosted: Thu Nov 28, 2013 7:43 am 
Old School Hero
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Joined: Wed Mar 16, 2011 5:20 am
Posts: 227
Location: Sydney, Australia
Well the frame is almost fully stripped for a repaint. Old paint is flimsy thin with lots of surface rust underneath the paint. Reconsidering my orange color choice and probably redo it similar to the original paint scheme. The Suntour AG rear derailleur's pulley wheel is abit nackled - stripped of it's teeth and being a none standard one is near impossible to get a replacement so waiting for a Suntour AR 1980's derailleur with standard jockey wheels from the US fleabay. Should be a good period alternative. Will be hopefully bidding for some old 5 speed Araya MTB wheels tonite. Got some VP beartrap pedals in the post today as well - arghh I remember all the scars on my shins as a kid riding beartraps on a bmx.
The separate parts probably end up costing more than the frame but it's proving to fun with abit of hard work redoing it. Hopefully should get it going in a few more weeks. Looking forward to see how it rides.


Attachments:
framestrip.jpg
framestrip.jpg [ 115.68 KiB | Viewed 1494 times ]
File comment: VP beartrap cage pedals
pedals.jpg
pedals.jpg [ 155.47 KiB | Viewed 1494 times ]
derailleur.jpg
derailleur.jpg [ 140.88 KiB | Viewed 1494 times ]
File comment: Rear derailleur's bald pulley wheel
pulleywheel.jpg
pulleywheel.jpg [ 118.03 KiB | Viewed 1494 times ]
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 Post subject: Re: 1980s Centurion MTB
PostPosted: Thu Dec 05, 2013 2:36 am 
Old School Hero
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Joined: Wed Mar 16, 2011 5:20 am
Posts: 227
Location: Sydney, Australia
The frame has been primered up and ready for the final paint job. Here's a couple of mock up pics of the frame with wheels. I kept on getting trounced on auctions at the last micro second for the period Araya wheels so instead got some cheap bolt on screw hub ones from a LBS for 30 bucks (@ 15 quid) complete with amber wall tires that were hardly worn. Hopefully should be complete soon.


Attachments:
primeredframe.jpg
primeredframe.jpg [ 134.37 KiB | Viewed 1420 times ]
primer.jpg
primer.jpg [ 123.51 KiB | Viewed 1420 times ]
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 Post subject: Re: 1980s Centurion MTB
PostPosted: Thu Dec 05, 2013 9:20 am 
retrobike rider / Gold Trader
retrobike rider / Gold Trader
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Joined: Mon Jun 22, 2009 11:09 am
Posts: 9464
Location: Devon
Love it. What colour are you going for?


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 Post subject: Re: 1980s Centurion MTB
PostPosted: Thu Dec 05, 2013 9:38 am 
King of the Skip Monkeys
King of the Skip Monkeys

Joined: Wed Nov 07, 2007 4:34 pm
Posts: 29471
I'd colour match the bars too. If you get stuck for wheels no-one will call you out for not going totally 'retro'. Lots of tasty modern hubs that can be adapted and used.


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 Post subject: Re: 1980s Centurion MTB
PostPosted: Thu Dec 05, 2013 10:45 am 
Old School Hero
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Joined: Wed Mar 16, 2011 5:20 am
Posts: 227
Location: Sydney, Australia
I'm going to try get a similar blue to the original over my initial choice of screaming bright orange. I'll keep it conservative! With the wheels if all else failed I was thinking about Dia Compe high flange hubs laced up to Rigida Sputnik sliver rims (modern quality with old school looks) but unfortunately my budget won't stretch that far.


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