[Spartacus]

Hey i have a Offroad Tandem and i was just wondering what size chianring does everyone have on the none drive side, the guy before me has a 52 teeth on it and it's seem a little to big for me.

Thanks Sparty

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[TandemGeek]

34t timing rings with 44/34/24t rings on the drive side.

http://www.thetandemlink.com/Images/gallery/ventana_websm.jpg (http://www.thetandemlink.com/Images/gallery/ventana_web.jpg)

Click on photo to see super-sized image

[moleman76]

chainring on the none drive side

you're asking for the left side chainring(s) on a cross-over drive, correct?

Sorry I can't help you for an off-road tandem, but I think (haven't counted lately) my on-road has 36-tooth chainrings ...

52 would seem excessive. More is better (less wear on the teeth), but there's got to be an upper limit.

[kevbo]

In addition to less wear on the teeth, larger timing rings reduce chain tension, which reduces frame flexing a bit. 40T or so is common on road tandems. MTB tandems might opt for less due to ground clearnace considerations, which are worse for a tandem than a solo MTB.

[Xanti Andia]

Definitely prioritize ground clearance over timing chain ring wear on an MTB, as demonstrated in TG's gorgeous Ventana with 34t. 52t timing chain rings would be odd even on a road tandem.

[antiquepedaler]

42 tooth timing rings, 24 x 34 x 46 chainrings on the bike below.