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Cannondale RT1000 Refurb Project

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Cannondale RT1000 Refurb Project

Old 03-05-18, 09:56 AM
  #1  
Juke41
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Cannondale RT1000 Refurb Project

Thought I’d share the recent refurb of a Cannondale RT100
The frame was stripped, weld on’s removed i.e. cable guides, cable stops etc. and the frame was then ‘Soda Blasted” back to its original aluminum state. The frame then went through the painting process and is finished in Camargue Red with a tinted clearcoat. I have not replaced the Cannondale decals but have paid homage to Cannondale by putting a “C” on the head tube and top of the seat stays and also a “Made in the USA” decal on the rear of the front seat tube. The aim of the build was to have a very clean look, so Sram Etap was chose for the gearing with a 11-32 cassette. A custom Gebhardt 46/30 tandem chain set and a Gates CDX Carbon belt drive system with 74 cog sprockets. Brakes are TRP Spyre disk brakes with 203mm rotors and as the cantilever lugs would be no longer used, I machined some aluminum bar and inserted reflectors on the front and rear. Brooks B17 saddles were refurbished by Brooks with new oversized rivets, new badges and an overnight soak in profide. The Titanium stoker stem was manufactured in China to my specification.
Only thing now, is to get some good weather to put it through its paces, all in all, very pleased with the outcome.
Attached Images
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Left Front.JPG (1.44 MB, 279 views)
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Old 03-05-18, 10:28 AM
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obrentharris 
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Very nice!
I like the tiny reflectors. Maybe your next project is tiny LEDs in the same locations?
Brent
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Old 03-05-18, 11:59 AM
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joelcool
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Wow, that's beautiful! Great job. Stunning.
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Old 03-05-18, 02:24 PM
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Paul J
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Looks great! Have you weighed the bike with all your upgrades?
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Old 03-05-18, 04:49 PM
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bwebel
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that is really cool...might have to try the same thing on my empty canti posts. Any reason you didn't put a carbon fork on too?
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Old 03-05-18, 06:58 PM
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Looks great. We've been on the fence about selling our cannondale as we don't really ride it much anymore. The other consideration stripping it down and building it up with wireless etap.

Maybe I'm way off on this but I would figure the strip and paint is basically the price of a used cannondale. Am I wrong in that assumption?
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Old 03-06-18, 02:59 AM
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NoTrail
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Looks great. Lots of really nice upgrades.
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Old 03-06-18, 04:18 AM
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Artmo
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Beautiful! Congratulations!
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Old 03-06-18, 04:56 AM
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Juke41
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Thanks all, weight is around the 32 pound mark. I'm fortunate with that I can do the paint myself, having worked for a major paint company for the past 30yrs, in the UK, the cost to blast and paint a tandem is around £275 for a single colour. Did consider a carbon fork but cost was a bit too far, maybe a consideration for the future.
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Old 03-06-18, 09:14 AM
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Yamato72
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Well done
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Old 03-06-18, 09:19 AM
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WOW!!!!! That looks incredible.

That stoker stem is really something. Where'd ya get that made? What's the ballpark weight?

The custom reflectors are a really nice touch, what a great idea.
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Old 03-06-18, 11:20 AM
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Beautiful. You must be proud of a job well done!
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Old 03-07-18, 04:39 AM
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Juke41
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Stoker stem was made by XI'AN CHANGDA TITANIUM PRODUCTS CO.,LTD
guys name I dealt with was Porter
Never weighed it but being titanium its going to be fairly light, certainly feels it
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Old 03-08-18, 10:33 AM
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Would it be cheeky to ask how much the whole project cost you? I have a Cannondale Los Dos fame and forks hanging on my garage wall ready to be rebuilt and your project has re-whetted my appetite.

What is "soda blast" and how did you remove the cable guides? Was your tandem already set up for disc brakes?

Where are you in the UK? We'll be in Brighton June-Sept.
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Old 03-08-18, 04:54 PM
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Originally Posted by Artmo View Post
Would it be cheeky to ask how much the whole project cost you? I have a Cannondale Los Dos fame and forks hanging on my garage wall ready to be rebuilt and your project has re-whetted my appetite.
What is "soda blast" and how did you remove the cable guides? Was your tandem already set up for disc brakes?
Where are you in the UK? We'll be in Brighton June-Sept.

Hi Artmo, The RT1000 cost me £800, Id been looking one this size for a few years and when it came along, I bought it, the guy who I bought it from had just done some major upgrading to it. IMO this frameset set the standard in the 1980's and still rings true today.
I stripped all the components off and over a few months sold them on ebay for …..£800. I used a dremel to remove the the majority of the cable guides / stops and then a fine file to finish off, suprisingly very little penetration of the welds on these bits. The cantilever spigots are very heavily welded and I thought that if I removed these, then I may compromise the integrity of the frame, hence why I used them to mount reflectors in. The RT1000 has rear disk brake mounts but the forks didnt, so I sourced a pair of Cannondale Fatty Tandem forks on which I could mount disks.
Soda blasting is where instead of sand/shot/glass or mineral beads, they use bi carbonated soda crystals, which on impact, release their energy and remove only the paint layers, they say you can soda blast a coca cola tin, remove all its red livery and be left with an un blemished can….amazing technology, they also use ground walnut shells !!
So the painted frame cost me £0, add the cost of the components you would like to use and thats what it costs. I could have bought one of the last Cannondale tandems for what it cost, but it would have no where near the high specification of components that I used.
Im in the West Midlands, just west of Birmingham, are you visiting friends or on tour June-Sept ?
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Old 03-22-18, 03:25 PM
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As the weather has now improved, took the tandem on a 20 miler to dial it in and try all the new stuff out.
From the first pedal revolution, the bike felt really nice and responsive, went a bit tentatively on the brakes to slowly bed them in.
The gates belt is a really nice bit of kit…..silent in operation and no noticeable take up.
The biggy for me is the Etap…..once you've tried Etap….theres no going back !! its sets the ride up to a new dimension……..effortless. I remember in the 70's & 80's using the down tube shifters, hairing round bends and having to take your hand off the bars to change gear, then came the bar con shifters, I never really felt comfy with these and as soon as I could afford them, went to STI levers. Etap, well it is effortless, silky smooth changes on both back and front, no clunking or delays in the shifting and is a joy to use.
By the end of the ride the TRP Spyres were performing really nice with a positive feel to them. Looking forward to getting out and putting more miles in.
One thing I wouldn’t mind looking at, is a computer that links with Etap, really so I know which gear I’m in, anyone have experience with one ?
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Old 03-22-18, 05:04 PM
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Nice build.
Is there any danger from corrosion by using the soda blasting?
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Old 03-23-18, 03:43 AM
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Juke41
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Originally Posted by turkey9186 View Post
Nice build.
Is there any danger from corrosion by using the soda blasting?
Bi Carbonate of soda is an inhert media and leaves very little if any residue. I took a belt and braces approach and just prior to paint, wiped the frame over with phosphate conditioning wipes, which sets up aluminium nicely by cleaning it of any contaminates and also slightly etching the aluminium.
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Old 03-26-18, 09:51 AM
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Beautiful. Like this machine. Well done job. And "my" color :-)
The cantilever spigots could be useful if your stoker thinks he/she needs an own break (...and the stoker is always right as we know ;-).
Mine would definitely need a suspension seatpost. I know - this looks rather strange on a roadbike setup, but I have very few discussions about avoiding bad pavement since the Thudbuster LT entered my scene...
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