Tandem Cycling - Disc adapter for drum-ready hub

I have an Avid BB7 disc brake on the rear of my tandem. The rear hub is a Hugi disc-ready hub. IF I get another wheel with a drum-ready hub and use a thread-on disc adapter, will I be able to switch wheels without a lot of brake adjustment?

As long as you get the correct size adapter it shouldn't be a problem.

You will probably have to get another Hugi hub. Another brand of hub will require adjustment of the brake and shifting.
Sheldon Hall
Greenfield, IN

Cable quick change assembly if possible. Relocating bolt down cables soon leads to lousy looking cables, especially if the clamping position is different

You will probably have to get another Hugi hub. Another brand of hub will require adjustment of the brake and shifting.
Sheldon Hall
Greenfield, IN

We have a White Industries hub and a Hugi hub. They sell 0.1mm spacers that go behind the disc that will place the disk in the same position from the dropouts for each wheel. That way you can change the wheels without having to adjust the brakes. The spacers were developed for mountain bike disc brakes for quick wheel changes. I got a pack from TandemsEast and they were fairly inexpensive.

We're having our White Industries hub disc mount adjusted further away from the dropout so I'll have to respace the disc on the Hugi.

Cable quick change assembly if possible. Relocating bolt down cables soon leads to lousy looking cables, especially if the clamping position is different

What?

We have a White Industries hub and a Hugi hub. They sell 0.1mm spacers that go behind the disc that will place the disk in the same position from the dropouts for each wheel. That way you can change the wheels without having to adjust the brakes. The spacers were developed for mountain bike disc brakes for quick wheel changes. I got a pack from TandemsEast and they were fairly inexpensive.

We're having our White Industries hub disc mount adjusted further away from the dropout so I'll have to respace the disc on the Hugi.

Thanks for the spacer tip. Do either or both of your hubs use thread-on disc brake adapters?

From Precision Tandems Website:

HUB ADAPTERS HUB ADAPTERS DISC ADAPTERS donut rotor adapters
Measure from inside of the disc mount to the threaded
shoulder on the hub near the spokes in millimeters.
Provide this measurement when placing your order.
along with the brand of hub and tandem.
DISC BRAKE WHEEL ADAPTERS HUB ADAPTERS DISC ADAPTERS donut
Disc Brake Hub Adapter addition shim, 3mm for Cannondales $15.00
Disc Brake Hub Adapter / Disc Donut 6 Bolt design ~13mm Hub adapter $40.00
Disc Brake Hub Adapter / Disc Donut 6 Bolt design ~15mm Hub adapter $55.00
Disc Brake Hub Adapter / Disc Donut 6 Bolt design ~17mm Hub adapter $40.00
Disc Brake Hub Adapter / Disc Donut 6 Bolt design ~18mm Hub adapter $40.00
Disc Brake Hub Adapter / Disc Donut 6 Bolt design ~20mm Hub adapter $40.00

Thanks for the spacer tip. Do either or both of your hubs use thread-on disc brake adapters?

No, both are regular disc hubs. The variance in the disc location is a bit less than 1mm. The Hugi hub is very close to the standard of 15.25mm.

From Precision Tandems Website:

HUB ADAPTERS HUB ADAPTERS DISC ADAPTERS donut rotor adapters
Measure from inside of the disc mount to the threaded
shoulder on the hub near the spokes in millimeters.
Provide this measurement when placing your order.
along with the brand of hub and tandem.
DISC BRAKE WHEEL ADAPTERS HUB ADAPTERS DISC ADAPTERS donut
Disc Brake Hub Adapter addition shim, 3mm for Cannondales $15.00
Disc Brake Hub Adapter / Disc Donut 6 Bolt design ~13mm Hub adapter $40.00
Disc Brake Hub Adapter / Disc Donut 6 Bolt design ~15mm Hub adapter $55.00
Disc Brake Hub Adapter / Disc Donut 6 Bolt design ~17mm Hub adapter $40.00
Disc Brake Hub Adapter / Disc Donut 6 Bolt design ~18mm Hub adapter $40.00
Disc Brake Hub Adapter / Disc Donut 6 Bolt design ~20mm Hub adapter $40.00




Thank you. That is exactly what I was looking for.

Upon closer inspection, it appears that is what I have on my current wheel.