Aluminium 96 Sprocket, black, 50T. Sur-Ron Ultra Bee
Aluminium 96 Sprocket, black, 50T. Sur-Ron Ultra Bee
- A larger sprocket will give your Sur-Ron better acceleration.
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The rear sprocket is the cheapest way to change the character of the drivetrain. You are not adding power — you are changing how that power reaches the wheel. CNC-machined from 7075-T651: harder and stronger than the common 6061, so the teeth hold their geometry under chain load while staying light.
Stock on the Sur-Ron Ultra Bee is 46 teeth. This one has 50 — a shorter final drive: stronger off the bottom, easier climbs, more control in technical terrain. There is one cost and we say it plainly: top speed drops.
How many teeth to pick
| How you ride | What you take | What you gain, what you lose |
|---|---|---|
| Technical terrain, climbs, stunt | More teeth than stock | Torque at the wheel and control at low speed. You lose top speed. |
| Mixed: some trail, some commute | Close to the stock 46T | The compromise the manufacturer chose as default. |
| Long straights, tarmac, top speed | Fewer teeth than stock | Higher top speed. You lose bottom-end punch and climbing force. |
This item is 50T. Against the stock 46T that is a shorter final drive — harder off the bottom, slower flat out. Other sizes from the same family are in the tiles below.
What you get
50T sprocket
420 pitch, for the Sur-Ron Ultra Bee.
7075-T651 aluminium
Harder and stronger than 6061. Teeth keep their shape.
Black anodised
Finish that survives off-road conditions.
CNC machined
Repeatable tooth geometry, no mounting slop.
What is not included
No chain, no mounting bolts, no front sprocket. Check your chain length — changing tooth count changes the tensioner range and sometimes you need extra links. Chain and a bolt set are in the tiles below.
Specification
| Model | Sur-Ron Ultra Bee |
| Tooth count | 50T |
| Stock on this model | 46T |
| Pitch | 420 |
| Material | 7075-T651 aluminium |
| Machining | CNC |
| Finish | Black anodised |
| Position | Rear sprocket |
The manufacturer publishes neither sprocket weight nor a final ratio — the ratio also depends on your front sprocket. Tell us what you run up front and we will work out the real ratio.
50T7075-T651420 pitchCNCStock: 46T
Before you order
- Changing tooth count changes chain slack. A larger sprocket may need extra links.
- This sprocket is for the Sur-Ron Ultra Bee. Other models have their own sizes.
- Mounting bolts are not included — a titanium set is in the tiles.
- Not sure how many teeth? Tell us how you ride and we will pick.
Frequently asked questions
How many teeth does the stock sprocket have?
On the Sur-Ron Ultra Bee the stock sprocket is 46T. This item is 50T, which means a shorter final drive — more torque, lower top speed.
Does a bigger sprocket increase range?
There is no simple answer and we are not going to promise one. A shorter final drive reduces motor load on climbs, but at the same road speed the motor spins higher. In technical terrain it usually helps; on tarmac it usually does not.
Do I have to change the chain?
Not always, but you do have to check. Changing tooth count changes the tensioner range. A big jump upwards usually means extra links.
Why 7075-T651 and not 6061?
7075-T651 is harder and stronger. Under chain load the teeth round off more slowly and the sprocket keeps its geometry longer.
Does it fit a model other than the Sur-Ron Ultra Bee?
No. This version is for the Sur-Ron Ultra Bee. We stock separate items for the other models — message us and we will pick one.
Complete the drivetrain
Not sure how many teeth?
Tell us where you ride and what front sprocket you run. We will work out the ratio and suggest a size.
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