JanMM

Clever lady!

Number400

That's why I asked her to marry me!

mtnbke

Nice bike! My absolute favorite part is what I think are Ciussi Elite water bottle cages, including an "extra" one on that little extra frame piece for the front derailleur. The other thing I noticed about your bike fit is that it looks like your stoker has a longer Pubic Bone Height than the Captain, by about an inch it looks like. If you don't mind my asking, what are your respective heights and weights? I'm always fascinated by mixed size couples on tandems and I'm curious how that works out. Some 160lb old grouch at Belmont Wheelworks took me on my first tandem ride with me as stoker. I was like 350lbs at the time. He kept yelling at me the whole ride. I didn't really think it was my fault, I just think we never should have been on the bike together with me as the stoker. Being tall, I'm always very curious how tall women fit on tandems with normal sized husbands, and how it affects the handling.

How come the water bottle mounts on the frame aren't a lot higher? Those look really difficult to try and reach for while riding.

We have three tandems currently. One is a steel Santana Arriva that I don't approve of its very existence, but its for friends to try to suck them into tendering and much too small for us. We currently have two Cannondales. I bought one for my Dad and he gave it back. His third wife didn't ride with him and his now girls friend doesn't like not being in control. There is a reason she's not wife number four.

I'll trade all three tandems, in a heartbeat, for Davinci Aluminum, if it was custom geometry to really fit me and my stoker/kids. I'd like one with Periscope geometry where the top tube plunges so the stoker compartment can accommodate the wife or the kids. I don't even know if that's possible or feasible with a bike that would fit me. My touring Cannondale is 27" (69cm). The Cannondale tandems are Jumbo up front which is the 25" equivalent, but I really struggle to swing my legs over it, even though I'm 6'7". The stoker bar means I can't swing a leg over from the back like I do on my single. I mean its really really hard for me to mount and dismount the tandems. My wife asked me the other night if we were going to sell the other Cannondale tandem. My answer was "of course" I couldn't think of a reason to have two, essentially they are the same other than the one we're keeping have a larger steerer size (safer). Now I'm thinking it would be cool to keep the other one set up with the child stoker kit. However, the 1" steerer on the other one scares me, I'd have to have a custom fork made to quell those concerns.

I'd trade all three for a Davinci tandem. We were passing a couple on a white Davinci the other day, they were down in Gunbarrel just North of Boulder. I couldn't believe they were crazy enough to be riding their tandem on the diagonal. We pulled up next to them at the stoplight and I rolled down the window. I really wanted to ask them about the independent pedaling system. They said they hated it and had it turned off essentially immediately and haven't used it since. So I guess I've met "the one team that has asked Davinci to turn it off, as they claim." If they are on this board, PM me. You seemed like a nice couple and we should trade information and go for a tandem ride together sometime.

I think my stoker and I would LOVE the independent pedaling. I'm fat and out of shape but can still kick out some wattage. On my single I have a very strange pace in that I probably spend more time coasting than pedaling. It used to drive some roadie friends of mine crazy. We'd be riding together and he would get frustrated why he'd be getting so winded. I'd pedal for a burst and then coast. He'd be spinning and was struggling to keep up. We were on a ride to "get me one a ride." My wife hates my stop and start pedaling cadence and it actually hurts her knees. I hate the tandem because I have silly little clown 175mm cranks on it. I'm about to switch to my Zinn 200mm cranks (Davinci also makes different tandem cranksets, even up to 200mm) on the tandem and I'm really worried about torquing her knees. I'm pretty much resigned to the fact that we are going to have to get a Davinci with the independent pedaling.

I struggle to communicate when I'm starting and stopping pedaling. We are about to to experiment going 90 degrees out of phase. I think it will improve our "climbing" (what is a mountain to us probably doesn't even register as a hill to anyone else) significantly. My wife feels like I drop the pedals out from under her feet. Going out of phase should allow her to contribute during my dead spots in my spin. I have significant dead spots because my knee over spindle position isn't even in the neighborhood. I can build the tandem up from the 25"/63cm size to approximate my 69cm compartment, but the crank ends up being way out in front of me, and when I put the longer cranks on it, my pedal spindle will be significantly in front of my kneecap. I'm going to drop a weight and do the KOPS estimation and take a picture. I don't think it will even be close.

I'd like a custom tandem that actually "fit" whatever that actually means, and I think I'd love it to have the Davinci independent pedaling. Maybe a joint venture Zinn/Davinci/Paketa? Paketa builds for Zinn, and Zinn specializes in big/TALL bikes. Maybe Zinn would build me a magnesium tandem working with Davinci to figure out the geometry for me. I think we'd love the independent pedaling. I know my wife would.

DonP

This pretty much sums up our opinion also. We had 2 Joint Ventures.... 1 for the road and a very similar 1 for the Crushed limestone / paved trails. I sold them both for almost what I paid for them and bought this. It is a Carbon, Di2, hydraulic disc brake, ENVE cockpit (F&R), HED Jet 6+ road wheels and HED Ardennes for the trails. This one is VERY fast and comfy!
https://www.bikeforums.net/attachmen...1&d=1517376133

Ludkeh

Started out with a Co-Motion Java for a few years. Once we test rode a Da Vinci tandem we were hooked. We love our In-2-ition road tandem. Would NEVER go back to a traditional tandem. Makes for a happy stoker! No need to say more.

DonP

We have our dream DaVinci.... Carbon, Di2, Hydraulic brakes, ENVE cockpits, HED Jet 6+ wheels, HED Ardennes for trails.

This is our 3rd Joint Venture. We sold the other 2 to fund this one. (it only took a month!) This one is comfy and... VERY fast! I also have TT extensions with Di2 shifters on them so we can try our luck at TT racing this. If it gets to windy for the Jet 6+... We also have a HED Jet 4+.


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akexpress 

Beautiful bike!!!

DonP

Thanks!!

LV2TNDM

Wow. Just wow!

DonP

Thanks!