View Single Post
Old 08-27-2013, 12:38 PM
BigBlue's Avatar
BigBlue BigBlue is offline
Motorized Bicycle Elite Member
Join Date: Nov 2011
Location: California
Posts: 781
Default Re: Well, Lookit This, Sprocket Disc Brake ass.

Looked at the Bicycle Designer YouTube video of the product:

If you advance to 7:30, you will see the parts that they used for their kit.

Formula makes a 10" (255mm brake disc rotor). Santana Tandems installs them on their bikes:‎

Their Harmony adapter looks like King's Sales & Service TopHat adapter. Their Secret Adapter looks like the brake disc adapter from Atomic Zombie with threads cut in the inside to adapt to a freewheel hub.

I have no problem with the prices. Add up the cost of the individual components, time, labor and design and they're not making a boat load of money. $288 per unit isn't too bad. My guess is that they had the harmony adapter and Secret Adapter custom machined.

The only issue I have is using a flip-flop hub which has a right hand thread on the rear hub. I would prefer a left hand thread. I wouldn't want the whole shebang coming apart during a high speed stop.

From reading on the Internet, you'd want to use a dry chain lube on your chain, so you don't contaminate the disc brakes.

AKA: BigBlue
Attached Images
File Type: jpg DBAX34 Trike Axle Disc Adapter 3.jpg (140.3 KB, 789 views)
Reply With Quote