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Makes And Models => Zero Motorcycles Forum | 2013+ => Topic started by: Lecram on May 06, 2015, 03:23:12 AM

Title: Is a DS convertible to a SR specs bike?
Post by: Lecram on May 06, 2015, 03:23:12 AM
I compared the DS specs with the SR specs and it seems that only the controller is different. There is a difference in the drive train ratio, too, but that's not a big deal.
So could it be possible to convert a DS into a SR specs bike by replacing just the controller?
Title: Re: Is a DS convertible to a SR specs bike?
Post by: Doug S on May 06, 2015, 03:28:22 AM
If it is, Harlan at Hollywood Electrics is the man to do it!

Assuming he hasn't already, of course.
Title: Re: Is a DS convertible to a SR specs bike?
Post by: Lecram on May 06, 2015, 03:36:17 AM
If it is, Harlan at Hollywood Electrics is the man to do it!

Assuming he hasn't already, of course.

Hmm, Harlan is located in the USA, I live in the Netherlands ;)
There are several EV specialists here, so the technical work shouldn't be a problem.
Title: Re: Is a DS convertible to a SR specs bike?
Post by: firepower on May 06, 2015, 03:56:05 AM
Think there are 2 options, replace 420A controller with 660A contyroller. The other option is to add a second 420A controller. (840A  ;D)
Remember seeing someone planning to do this in a thread.

Harlan may even have leftover 420A controllers for sale.
Title: Re: Is a DS convertible to a SR specs bike?
Post by: protomech on May 06, 2015, 06:06:10 PM
The major SR differences are tires, higher temp motor magnets, and the larger motor controller. The default suspension setup might be a little more aggressive, and it's possible there might be a couple other differences in software.
Title: Re: Is a DS convertible to a SR specs bike?
Post by: Lecram on May 06, 2015, 08:00:53 PM
I asked Zero the same question and got this answer:

"Essentially both the Sevcon controller and the motor are different.  The Sevcon controller is a Size 6. The ZF75-7 R motor on the SR has higher temperature magnets."