Electrically fitting aftermarket grips isn’t too challenging. The challenging part, to me at least, was the mechanical fitment – just make the new grip fit on the throttle tube.
I can now say that I have successfully done just that.
Here’s a photo of the Oxford adventure grip (top), OEM throttle tube (middle) and OEM grip (bottom). You can see the large flange on the inboard side of the OEM throttle. This flange contains the heater wires and allows the cable to flex when the throttle is twisted. It also makes it impossible to fit any aftermarket grip onto the throttle tube because with the flange in the way, any aftermarket grip will be way too long.
My dealership gave me a free throttle tube that they had lying around so I got my Dremel out and modified the tube, hoping that when I was done, the Oxford grip would fit.
Here’s what the tube looks like when removed from the sensor housing.
After grinding away the unnecessary features like the inboard flanges and the outboard ring, this is what I was left with:
The next step was to trim the Oxford grip because it was around 6-7 mm too long. I just rigged up some thinks on my workbench and used a utility knife to cut the grip. I rotated the grip on the wooden dowel (7/8” diameter) while pushing down on the knife. The far end of the grip was pressed up against the side of the vice holding the wooden dowel in position. All of this kept the grip in position but made it easy to rotate, while the knife did the work.
This resulted in a really clean edge. I knew this edge would be visible and any jaggedness would really bother me. Also, I wanted to minimize the gap between the grip and the bar end. This clean cut allowed me to do that.
Finally, here is the grip installed on the bike.
In comparison, the left side grip took no time at all. I estimate that side took about 4 minutes to install.
So, it is possible to fit an aftermarket heated grip to a 2015 DVT throttle tube, with some fairly easy modifications.