Surron Ultra Bee Street Legal Kit Assembly Guide
Tools Needed:
- Phillips head screwdriver
- 10mm wrench
- 12mm wrench
- 5mm Allen key
- Socket (recommended in place of the wrench for the tail light nuts)
Read This Before Starting Your Install:
This guide covers assembling the Surron Ultra Bee Street Legal Kit on the bench before it goes on the bike. The kit comes with an OEM street legal wiring harness, a combo blinker/flasher/horn switch (DIO), the flasher box, front blinkers and blinker harness, and a rear tail light and blinker assembly with all the hardware to bolt it together. This walkthrough focuses on building the rear tail light, blinker, reflector, and license plate bracket sub-assembly so it's ready to mount.
It's written for the home mechanic who just pulled the kit out of the box and wants to get it built correctly the first time without chasing wires or stripping plastic. If you can handle a screwdriver and a wrench, you can do this. The whole thing uses four tools and a handful of nuts and bolts.
You'll finish with the rear blinkers, tail light, reflector, and license plate bracket fully assembled, wires routed through the main bracket, and everything snug. From there, the next step (covered separately) is installing the assembly and the rest of the harness on the Ultra Bee to make it street legal.
Install Steps:
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01
Lay Out the Kit and Confirm Parts
Unbox the kit and confirm you have the OEM street legal harness, the combo blinker/flasher/horn switch (DIO), the flasher box, front blinkers, the blinker harness, the tail light and rear blinker assembly, and the hardware bag. The hardware bag has both nyloc nuts and standard nuts. You'll need the nyloc nuts for the tail light and reflector.
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02
Install the Rear Left Blinker
Take the rear left blinker and remove the nut and washer from the threaded stud. Feed the blinker's wire through the mounting hole in the bracket so the stud clicks into place. Put the washer and nut back on over the wire side. Use a 10mm wrench (the video corrects to 12mm at one point, confirm your kit's nut size) to snug it down. You're tightening against plastic, so get it firm but don't crank on it. Important: the left side uses the orange and green wires.
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03
Install the Rear Right Blinker
Repeat the same process on the right side. Feed the wire through the mounting hole, click the stud in, and reinstall the washer and nut. Snug it down with the wrench. The right side uses the blue and green wires. Double check you didn't swap sides, since the wire colors are what tells the harness which side is which.
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04
Mount the Tail Light
Route the tail light wire through the large square hole in the bracket. The two studs on the back of the tail light should pop through their holes cleanly. On the back side, thread on two nyloc nuts from the hardware kit. A socket will speed this up a lot more than an open-end wrench. Tighten both nuts down evenly.
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05
Install the Rear Backing Piece
Flip to the back side of the license plate bracket. Take the small backing piece (it has two notches, one on each side) and slide it down into place. Secure it with the two small black Phillips head screws from the hardware kit. Tighten them fully.
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06
Install the Reflector
Take the two remaining nuts (the non-nyloc ones) and seat each one into its pocket just below the tail light. Place the reflector over them. From the back side, install the third nyloc nut to hold the reflector on. Tighten it down.
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07
Route the Wires Through the Main Bracket
Take the large main bracket and feed the wires through it one at a time. Start with one blinker, then the tail light, then the other blinker. Shimmy them through until they pop out the front. Pull them through snug so there's no slack bunched up inside the bracket.
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08
Bolt the Main Bracket to the License Plate Holder
Line up the two holes on the bracket with the two nuts you seated earlier (the ones under the reflector). Grab the two M5 bolts (the longer style, not the shorter one) and thread them into those two holes. Snug them, but don't fully tighten yet.
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09
Install the Top Bolt and Final Torque
Install the remaining top bolt. As you snug it, the plastic piece will self-align. That's why you left the lower two loose. Once the top bolt is snug and everything is aligned, go back to the two lower M5 bolts and tighten them fully. Then come back and fully tighten the top bolt. The rear tail light, blinker, reflector, and license plate assembly is now built and ready to install on the Ultra Bee.
Common Mistakes:
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Swapping the left and right blinker wires.
Orange and green on the left, blue and green on the right. Confirm before you bolt the blinkers down so you're not pulling it apart later.
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Cranking down on the blinker nut and cracking the plastic.
You're tightening against plastic. Snug is enough to keep it from vibrating loose. Don't reef on it.
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Using regular nuts where nyloc nuts belong.
The two tail light studs and the reflector get nyloc nuts. The two non-nyloc nuts seat into the pockets below the tail light as captured nuts for the M5 bracket bolts.
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Fully tightening the two lower M5 bolts before installing the top bolt.
Snug the lower two, install the top bolt, let the top bolt align the plastic, then tighten the lower two down. Finish by fully tightening the top bolt.
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Grabbing the wrong M5 bolt from the hardware kit.
There are two matching M5 bolts for the lower bracket mounts and one different bolt for the top. Don't mix them up.
FAQs
Which wire colors go on which side for the rear blinkers?
Orange and green go on the left side. Blue and green go on the right side. Get this wrong and your turn signals will be reversed when you wire them into the harness.
What tools do I actually need?
A Phillips head screwdriver, a 10mm wrench, a 5mm Allen key, and a 12mm wrench. A socket in place of the open-end wrench will make the tail light nuts go a lot faster.
When do I use the nyloc nuts versus the regular nuts?
Use two nyloc nuts on the tail light studs and a third nyloc nut on the back of the reflector. The two non-nyloc nuts seat into the pockets below the tail light and catch the M5 bolts from the main bracket.
Why shouldn't I fully tighten the two lower M5 bolts right away?
Leaving them snug but loose lets the plastic self-align when you install the top bolt. Tighten the top bolt first, then go back and torque down the two lower bolts.
Does this video cover installing the kit on the bike?
No. This build covers assembling the rear tail light, blinker, reflector, and license plate bracket on the bench. Installing the assembled kit and harness on the Ultra Bee is covered in a separate video.
Which M5 bolts go into the license plate holder?
Use the two longer M5 bolts that match the style shown in the video, not the shorter odd one. They thread into the two nuts you seated under the reflector.