Rear Hub for a Tandem that is Disk Compatible.

[Neg]

Can anyone recommend a Rear Hub that is Disk compatible for a Tandem or would any rear hub be compatible? even a MTB Hub??

[Johan Bornman]

Tandem hubs are 145mm OLD (Over Locknut Dimensioin). Mountain bikes are 135 and road bikes, 130.

 

Therefore only a tandem hub can be used, unless it is a "lesser" tandem that uses anything other than a 145mm hub.

 

Shimano tandem hubs are excelent and they come with a threaded left hand side. This thread can be used for an after-market drum brake or, an adapter with six holes that takes a standard six-bolt disk.

[Big H*]

Johan, will a rear disk have any benefit over a V-brake fitted with those pulley thingies?

 

Oh...... And the frame must also have Disk caliper mounting points. I think some Cannondale frames has.

Edited March 18, 2012 by eccentric1

[Neg]

My Frame does have the mounts for the Disk Brake and the threaded hub, so i think thats good to go. now i just need a 203mm rotor, brake caliper and a wheel rebuild....

 

Johan, where does one get these adapters?

 

i have Tektro brakes with those pulley things and they are very poor.... the front still squeal VERY loud and the rear just "slow the tandem down" pull as hard as you like....

the Disk im sure will stop the bike!

Edited March 18, 2012 by Neg VT

[Johan Bornman]

The one big benefit is that if you overcook the brake, the tyre doesn't burst. The cable friction and stretch on such a long linkage is also irritating but some disc brakes are also cable-actuated, especially on tandems.

 

Other than that, a very good V-brake (Shimano XT with paralellogram links and Koolstop Salmon pads), has no significant advantage for the experienced rider.

 

An inexperienced rider tends to "ride" the brake too much, especially the back brake. Since the back brake does very little on stopping the bike, it overheats.

 

An experienced rider will use the front brake predominantly and then use a technique of braking hard for shorter periods.

 

Tektro brakes in this situation are just about useless. They squeal because they're not stiff enough and, use a poor rubber compound. A better brake will keep the pads parallel throughout its useful traveland have stiff, forged levers.

 

I have no idea where to get the adapter from, I'd imagine one of those overseas tandem specialists. You may also want to search for an Arai drum brake that screws onto that hub. This is the best, in my opinion and Shimano's tandem hub threads are made for that brake.

 

Don't expect significant improvement in stopping with the disc. A rear brake is poor by definition, no matter what type of actuator you use. And if you use a powerful setup, it will simply drag the back wheel. You don't have mmuch traction here to play with. The real benefits will come in peace of mind when you don't have to worry about cooking the back brake.

[Neg]

thanks for the info Johan,

Right now i also need my wheels re built soon, but i will come and chat to with the bike so you can see what in talking about.

[Big H*]

Ya spent the munny yet?

[Neg]

Not Yet....

im still trying to decide what to do, just get newer better V brakes or go the Disk route at the rear... ive been looking for the adapter on the rear hub for disk brake, but no luck yet. and i just have not had time to get it to YS.

 

also been looking at a front disk conversion but that means new fork and so far one here sells Tandem rated front forks that are disk brake compatible.