Talbot Frameworks Tandem - Sik Fadez Family Chariot

Nice one, cheers!

Thanks. Will let you know if I have any questions. You'd need big balls to be stoker on a MTB tandem I reckon.

Do want.

lovin the tripple clamps

The only thing that came to me since was checking that its not a pain or more expensive to get the drive belt in longer length...

Just need to convince bothwell that it's a good idea now....

Thinking of front hub choices. Ideally want something that's dynamo, disc brake equipped and tandem specific. Google isn't helping much. Can find tandem specific dynamo hubs but nothing suitable for discs. Anyone seen anything or got any suggestions?

Almost certain the 29er tandem I posted is using this http://www.sp-dynamo.com/8Xseriesdynamo%20hub.html

They're also using BB7 rather than hydro brakes :)

BB7's are the devils work (road version, MTB version is fine).

Some info:

Shimano

http://si.shimano.com/php/download.p...008-00-ENG.pdf

Shimano disc brake systems are not compatible with tandem bicycles.
Because tandem bicycles have a high overall weight, the load on the brake system increases during brake operation. If hydraulic disc brakes are used with tandem bicycles, the oil temperature will become too high and vapor locks or ruptures in the brake hoses may occur, and this will cause the brakes to fail.

TRP

HYRD

http://www.trpbrakes.com/userfiles/f...%20Rev%20B.pdf

The HYRD brake system is an open hydraulic brake designed for
use on single rider bicycles.

Helix

http://www.trpbrakes.com/userfiles/f...%20A070213.pdf

WARNING - This braking system was designed for use on a single rider bicycle. Use of this system on any other vehicle or apparatus will void the warranty and possibly causing you great personal harm and injury.

SRAM

I couldn't find anything on SRAM's site on weight limits or exclusions for tandems on the SRAM website.

Hope Tech

I couldn't find exclusions for tandem's on Hope Tech's website.

^Stolen shamelessly from a post on The Paceline.

and possibly causing you great personal harm and injury

I descended the col d'Gog Magog yesterday on my tandem which has chromed steel wheels and mafac cantis. All was fine. You're over thinking it.

I don't think he is.

Do u even Gog magogs? Highest hills in Cambridge. Over 74m. I doubt the Alps go much higher than that.

Shit I had no idea. Balls of steel going down that without at least a drum.

Oh it has a drum, I'm not fucking mental.

Had a call from Matt this morning. Looks like we'll be going the way of cable discs on this. The frame will be receiving braze ons for a under bb mounted third brake but Tom's also brought the idea of an Eddy brake to the table. Yes, that's right, magnets for stopping!

What variety of cable disc you going for?

I regrettably know nothing about either di2 or disc brakes so need to listen to Matt, Tom, @dammit and the forum hive mind about what will work best given the uniqueness of this project. Got any good suggestions that will work with di2 Road shifters?

I think some testing is in order, I like the lack of meltable parts in the Paul Components calipers, however it's only a single piston design. That said, they are designed to be able to be adjusted using zero tools other than fingers, which when touring is a big plus. Although you might want to use an oven glove, depending on the terrain you have just negotiated.

So here's a cad drawing of the Eddy Current brake that Matt and Tom have been working on. I understand the science behind it but not how you could actually make it look nice on a bike.
If it can stop a bullet train, then it can probably stop this tandem.

I couldn't find exclusions for tandem's on Hope Tech's website.

Hope will laugh at you, possibly in a northern accent, if you tell them you are going to use their shiz on a tandem

http://www.sjscycles.co.uk/hope-tech-3-v4-tandem-rear-disc-brake-caliper-lever-and-braided-hose-prod33542/

Whose laughing now

Dunno, call Hope, see if they know anything about that product - it looks like the standard Tech 3 V4 DH / AM caliper