Yet Another Cycling Forum

General Category => Freewheeling => Tandems => Topic started by: salar55 on 21 March, 2021, 10:41:25 pm

Title: Tandems meeting on tour
Post by: salar55 on 21 March, 2021, 10:41:25 pm
Two VTT cannondales , fat tyres for the route forestaire.   You can do the tracks and sometimes contour across to another col without loosing too much height.(https://i.imgur.com/zxNTyW3.jpg)
Title: Re: Tandems meeting on tour
Post by: salar55 on 23 March, 2021, 07:25:29 pm
(https://i.imgur.com/Jk99fWi.jpg)
Title: Re: Tandems meeting on tour
Post by: Morat on 28 March, 2021, 10:44:19 pm
What a fun encounter :)
and I love the way no two tandems are set up the same.
Title: Re: Tandems meeting on tour
Post by: salar55 on 29 March, 2021, 11:35:27 am
 Some more tandems on tour. The French like camping in style, its how you do it, not how fast you are from A to B on tour. (https://i.imgur.com/jbst9T4.jpg)
and they like a few cafe stops. (https://i.imgur.com/Diok3oo.jpg)
Title: Re: Tandems meeting on tour
Post by: salar55 on 07 April, 2021, 11:15:52 pm
Tandem family on tour.  (https://i.imgur.com/fIljkXt.png)
Title: Re: Tandems meeting on tour
Post by: salar55 on 26 April, 2021, 06:08:37 pm
Tandem at bike shop , French cyclists looking for a new tyre in Granada. Another variation on tandem luggage setup.(https://i.imgur.com/OpP3Eor.jpg)
Title: Re: Tandems meeting on tour
Post by: iandusud on 26 April, 2021, 07:09:16 pm
Interesting to see the unusual transmission set up.
Title: Re: Tandems meeting on tour
Post by: Joe.B on 26 April, 2021, 08:11:54 pm
I came across a tandem with that set-up a couple of years ago. I guess that it has no issues with chain crossing but I bet the return side of the drive chain bounces about a bit.
Title: Re: Tandems meeting on tour
Post by: LittleWheelsandBig on 26 April, 2021, 08:38:33 pm
That used to be commonplace in France between the wars and after. Some front mechs were operated by a lever on the seat tube and it reduces BB bearing wear.
Title: Re: Tandems meeting on tour
Post by: The French Tandem on 27 April, 2021, 11:16:23 am
Even more interesting is the bent rear seat tube. I have seen this fairly often on older tandems made in France. I can understand that for a track or criterium racing tandem, a slightly shorter wheelbase is probably a good point. But on a touring tandem, who cares about 2 or 3 extra cm of wheelbase?

A
Title: Re: Tandems meeting on tour
Post by: LittleWheelsandBig on 27 April, 2021, 11:59:52 am
With small diameter tubing, making tubes shorter increases frame stiffness, particularly if heavily loaded.
Title: Re: Tandems meeting on tour
Post by: The French Tandem on 27 April, 2021, 12:11:52 pm
Good point!
Title: Re: Tandems meeting on tour
Post by: bhoot on 27 April, 2021, 12:50:37 pm
Easier to fit on a train?
Title: Re: Tandems meeting on tour
Post by: Kim on 28 April, 2021, 12:00:09 am
Quote from: Joe.B on 26 April, 2021, 08:11:54 pm
I came across a tandem with that set-up a couple of years ago. I guess that it has no issues with chain crossing but I bet the return side of the drive chain bounces about a bit.

It's not uncommon for recumbents to have an unsecured return side chain of that sort of length.  It's usually fine, unless you're a habitual user of small:small gears or get resonance from a really bad road surface.