Getting a second cheap tandem. Question about rear derailleur upgrade
#1
Hey let's ride.
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Getting a second cheap tandem. Question about rear derailleur upgrade
Hey everyone, been riding my original tandem (frame from Chucksbikes, a Tsunami 26 inch wheel built up as a road bike) since 2008. Absolutely love my tandem. I usually travel with an attached Burley Piccolo so I can bring at least one child with me.
Recently I remarried and with that came 5 year old triplets. I want us all to be able to travel on 2 bikes so I searched for a second tandem my lovely wife could captain. She could take one of the triplets and I could take 2. Found an incredible deal on a 2001 Univega Sport tandem.
The Univega is obviously an entry level tandem. The total weight on this tandem will be sub 200 lbs so I don't suspect we will have any problems with broken spokes. That was the complaint I read about while searching for reviews on this model. I have an old Shimano Ultegra 8 speed rear derailleur
that I think might be compatible. The Univega comes with a Shimano C201 Rapid-Rise. Does anyone know if my Ultegra 8 speed road bike derailleur is a compatible replacement? My Ultegra derailleur was purchased new in 1997 and has very few miles. I probably have a good quality 8 speed cassette hidden away as well. Here is a link to the specs on the Univega.
https://www.bikepedia.com/quickbike/B...t#.Ugj2w-BdVSU
Thanks for looking. The reasons I'm looking to upgrade components are twofold. One, I love to work on bikes. Second, why not use better components if I have them sitting in a box in my garage. I would rather the cheaper components be sitting in a box in my garage.
Recently I remarried and with that came 5 year old triplets. I want us all to be able to travel on 2 bikes so I searched for a second tandem my lovely wife could captain. She could take one of the triplets and I could take 2. Found an incredible deal on a 2001 Univega Sport tandem.
The Univega is obviously an entry level tandem. The total weight on this tandem will be sub 200 lbs so I don't suspect we will have any problems with broken spokes. That was the complaint I read about while searching for reviews on this model. I have an old Shimano Ultegra 8 speed rear derailleur
that I think might be compatible. The Univega comes with a Shimano C201 Rapid-Rise. Does anyone know if my Ultegra 8 speed road bike derailleur is a compatible replacement? My Ultegra derailleur was purchased new in 1997 and has very few miles. I probably have a good quality 8 speed cassette hidden away as well. Here is a link to the specs on the Univega.
https://www.bikepedia.com/quickbike/B...t#.Ugj2w-BdVSU
Thanks for looking. The reasons I'm looking to upgrade components are twofold. One, I love to work on bikes. Second, why not use better components if I have them sitting in a box in my garage. I would rather the cheaper components be sitting in a box in my garage.
#2
Hey let's ride.
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Location: Allen, TX
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BTW, got the Univega for $100 from a very nice seller.
Last edited by pathdoc; 08-12-13 at 09:04 AM.
#4
Hook 'Em Horns
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Bikes: Mine: Paul Taylor Custom 66cm, Rivendell custom 68cm, '75 Eisentraut Touring 69cm, 68cm track frame of indeterminate origin, '92 Cannondale M500. Ours: '93 Burley Duet tandem XL. Hers: L Mercier Sora thingy
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The Rapid Rise are nice derailers for inexperienced riders if the bike has lever shifters. Harder and easier are the same direction on both Avoids the discussion of, ok to make it easier in the front, you push on the left side barcon and pull on the right side barcon
#5
Hey let's ride.
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Just picked up bike, got it for $50! Incredible deal. Let the cleaning and adjusting begin.
#7
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Wow, how can you go wrong for $50?
I don't see why the Ultegra RD wouldn't be compatible. Rapid Rise is a function of the RD, not the shifters. Rapid Rise has the spring set up to pull the RD to the largest cog, whereas regular RD springs pull them to the smallest cog. I've retrofitted several bikes that had XTR Rapid Rise RDs with regular rise RDs without changing shifters. It looks like you have grip shifters, so the only thing that might be different is that the marked numbers will be reversed (e.g., whereas "1" probably is the easiest rear gear now, it will be the hardest if you switch).
I wouldn't be surprised to find that your rear "cassette" is actually a freewheel. A lot of times they cut corners that way. Hopefully it's a cassette for future compatibility and ease of service.
All that being said, my take would be "if it ain't broke, don't fix it." Putting the Ultegra RD on might add a bit of bling, but other than that isn't going to do too much for this tandem's rideability.
I don't see why the Ultegra RD wouldn't be compatible. Rapid Rise is a function of the RD, not the shifters. Rapid Rise has the spring set up to pull the RD to the largest cog, whereas regular RD springs pull them to the smallest cog. I've retrofitted several bikes that had XTR Rapid Rise RDs with regular rise RDs without changing shifters. It looks like you have grip shifters, so the only thing that might be different is that the marked numbers will be reversed (e.g., whereas "1" probably is the easiest rear gear now, it will be the hardest if you switch).
I wouldn't be surprised to find that your rear "cassette" is actually a freewheel. A lot of times they cut corners that way. Hopefully it's a cassette for future compatibility and ease of service.
All that being said, my take would be "if it ain't broke, don't fix it." Putting the Ultegra RD on might add a bit of bling, but other than that isn't going to do too much for this tandem's rideability.
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I have to agree, after seeing and using the original derailleur I can see no point in changing it. It functions just fine. Probably is a freewheel.
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