Surron Light Bee Moto Foot Brake Kit Install Guide
Tools Needed:
- 6 mm Allen key
- Hammer
- 12 mm wrench
- 18 mm wrench
- Socket set
- Impact driver (optional)
- Blue Loctite
- Cotter pin (included)
Read This Before Starting Your Install:
The FactoryZ Moto Foot Brake Kit swaps the Surron Light Bee's stock rear brake setup for a YZ250 master cylinder and a dedicated foot brake caliper running off a dual caliper bracket. If you've already added a handbrake kit or upgraded to a larger rear rotor, this is the next piece that turns the Light Bee into a real moto-style setup with proper rear stopping power controlled by your right foot.
This install is aimed at riders who want motocross ergonomics and braking feel on the Light Bee. You get a YZ250-style foot lever with adjustable height, a second caliper clamping the rear rotor, and a clean routing path for the new brake line up through the shock mount area.
The job is straightforward. You'll pull the rear wheel, build up the dual caliper bracket with its rubber piece, pad spacer, and post mount, then reinstall the wheel with both calipers seated over the rotor. After that you route the brake line through the top shock mount, swap the stock peg bracket for the foot brake bracket, and dial in the lever height to your preference. No major modifications, no cutting, and no special tuning. If you can pull a rear wheel and manage a chain, you can handle this one in an afternoon.
Install Steps:
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01
Remove the rear wheel
Pop the rear axle out. Turn the wheel forward, then spin it backward to walk the chain off the sprocket. Slide the wheel back, pull the dual caliper bracket off, and drop the wheel down and out of the swingarm.
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02
Build up the dual caliper bracket
Slide the rubber piece into the top of the dual caliper bracket. Set the pad spacer into position. Take the post mount that the caliper bolts to, add a small amount of blue Loctite to the threads, and thread it into the bracket. Tighten it down with a 12 mm wrench (an impact with a socket works too).
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03
Mount the foot brake caliper to the bracket
Slide the foot brake caliper onto the dual caliper bracket so it's ready to go on with the wheel.
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04
Reinstall the rear wheel
Here's the trick: slide both calipers over the rotor before anything else. Get the rear caliper on first, then the front caliper. Click the dual caliper bracket onto the wheel spacer, then slide the bracket onto the little nub on the swingarm. Push the axle through. On the opposite side, lay the chain about halfway onto the sprocket, get the chain tensioner block over the axle, slide the wheel all the way forward, and rotate it backward to walk the chain the rest of the way on. Tighten everything back down.
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05
Route the brake line through the top shock mount
Use a 6 mm Allen key and a hammer to break loose and remove the top shock mount bolt. Drop the shock down enough to pass the new brake line through. Once the line is routed, reinstall the shock bolt.
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06
Strip the stock peg bracket
Remove the stock peg bracket from the bike. Take the peg mount and the peg itself off the stock bracket so you can transfer them over to the new foot brake bracket.
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07
Transfer the peg to the foot brake bracket
Install the peg mount onto the new foot brake bracket and secure it with the nut on the back side. Note the nut size is 18 mm on the kit hardware (stock is 14 mm).
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08
Bolt the foot brake bracket to the bike
Install the top bolt on the foot brake bracket first. For the bottom bolt, pull the pin that holds the lever onto the master cylinder so you can access the bolt hole. Drop the bottom bolt in and tighten both down.
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09
Set lever height and pin the lever
Before fully pinning the lever, check the pedal height. If it's sitting too high, adjust it down to where you like it. Once the lever is where you want it, reinstall the pin into the master cylinder and run the cotter pin through it to lock it in place.
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10
Final tighten
Take a 12 mm wrench and tighten the two nuts at the back of the foot brake bracket. Double-check the cotter pin is seated, then you're done.
Common Mistakes:
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Trying to slip the calipers over the rotor after the wheel is already in the swingarm.
Slide both calipers (rear first, then front) over the rotor before you seat the wheel. Then click the dual caliper bracket onto the wheel spacer and onto the swingarm nub. Trying it the other way will fight you.
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Skipping Loctite on the post mount that the caliper bolts to.
Add a small amount of blue Loctite to the post mount threads before threading it into the dual caliper bracket. This bolt sees vibration and you don't want it backing out under braking.
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Installing the bottom foot brake bracket bolt with the lever still pinned to the master cylinder.
Install the top bracket bolt first. Pull the pin holding the lever to the master cylinder so you can reach the bottom bolt hole, drop the bolt in, then reinstall the pin.
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Setting the pedal too high and forgetting to adjust before pinning it.
Dry-fit the lever, check pedal height against your boot, and adjust down if it's sitting high. Only drop the pin and cotter pin in once the height feels right.
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Forgetting the cotter pin on the master cylinder lever pin.
After the pin is through, run the cotter pin through it so the lever pin can't walk out. This is the last step and easy to skip.
FAQs
Does this kit work with the FactoryZ handbrake kit and larger rear rotor?
Yes. This install was done on a Light Bee already running the FactoryZ Moto handbrake kit and a 240 mm rear rotor. The foot brake caliper runs off the dual caliper bracket, which is designed to share the rotor with the handbrake caliper.
What master cylinder does this kit use?
The kit uses a YZ250-style master cylinder, which is why it's called the YZ250 Moto foot brake kit.
Do I have to remove the rear shock bolt?
You don't remove the shock, just the top shock mount bolt. Pulling that bolt lets you drop the shock far enough to route the new brake line through cleanly. The bolt goes right back in after.
Can I adjust the pedal height?
Yes. Before you drop the pin back into the master cylinder, set the pedal where you want it. If it's sitting high for your boot, run it lower. Pin it once it feels right, then lock it with the cotter pin.
How hard is this install?
It's a straightforward bolt-on. The main skills are pulling the rear wheel, getting the chain back on, and routing the brake line through the shock mount. No cutting, no wiring, no tuning required.
What size is the peg mount nut?
On the foot brake bracket the peg mount nut is 18 mm. Stock on the Light Bee peg bracket is 14 mm, so don't assume your stock wrench will fit.