ElectricMotorcycleForum.com

Too late but I can help answer this question too!!  Bought 48/49mm ones for a 2013 S.  There are multiple sizes available, and you'll want to verify the fork diameter.

https://www.amazon.com/gp/product/B014KB2J1M/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

SpeedMotoCo was not the best to work with (sent incomplete parts, took a while to respond, slow shipping) but I finally did get what I ordered after several weeks.  You'll likely need to order a spacer (whitish part in the image).  For good measure I also added soft washers, but those are purely optional. 

Oh, and the bucket:  https://www.amazon.com/gp/product/B00WXPW846/ref=ppx_od_dt_b_asin_title_s01?ie=UTF8&psc=1

Hi.  Been lurking for several weeks after buying a 2013 S.  Both this forum and the Unofficial Wiki have been a great resource, and wanted to (slowly) start contributing by documenting some of the mods I've been doing.  First up is an option for putting the tank plastics back together for anyone who has a similar need.  I had elected to spray the plastics with automotive grade 2K paint and didn't want tape lines by the tank.  In my haste I dremel'ed off the plastic rivets without really thinking through how to put it back together.  I'm glad to report there is a pretty simple method, as summarized below:

Step 1:  Tools needed are 1) towel/soft working surface, 2) tape measure, 3) screwdriver/awl/something to poke 1/4" holes, 4) scissors, 5) cutting blade, and 6) double-sided tape (recommend Scotch Outdoor Mounting Tape, 1" wide)



Step 2:  If you haven't already, clean up the plastic rivet heads so they'll smoothly interface with the plastic clamshells again.  Do a dry fit-check before proceeding.


Step 3:  You will want approximately 1/2" x 24" of the double sided tape.  The Scotch stuff referenced previously is 1" wide, so I further cut the strip lengthwise to get two 1/2" strips.


Step 4:  Clean the plastics thoroughly with isopropyl alcohol or soap/water.  Place the tape along the ridge on the plastic.  You'll have to do a little trimming near the (as shown in this image) left-most lip so it follows the ridge and make a relief cut near the right-hand-side so it'll make the sharp turn.


Step 5:  Poke or cut holes where the rivet heads used to go.


Step 6:  Not really photographed but simply remove the tape liner and firmly press the plastic and center section together for about 30 seconds each side.  Due to the thickness of the Scotch tape there is a ~1/8" gap between the plastic and center section, but it's very consistent and rigid.  Shown in this image is the gap near the front of the tank.  Due to its consistency I actually prefer the look over OEM.


Step 7:  And this is an image near the backside of the tank.  Same size gap, but still very consistent.