TORP thumb throttle for regenerative braking – Sur-Ron Light Bee, Ultra Bee

TORP thumb throttle for controlling regenerative braking. Sur-Ron Light Bee and Ultra Bee with a TORP controller. The wiring loom is not included. Official TORP distributor.

USD85.70

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OFFICIAL TORP DISTRIBUTOR

TORP thumb throttle

Regen control under your thumb · Light Bee and Ultra Bee · TORP controller

Regenerative braking works by running the motor as a generator when you slow down, feeding energy back into the battery. Without separate control it is a fixed value set in the app — either too strong around town or too weak on a long descent. This throttle puts a slider under your thumb: you meter the regen while riding, the way you meter the gas.

It works with TORP controllers on the Sur-Ron Light Bee and Ultra Bee. It mounts on the handlebar next to the throttle and plugs into the controller loom.

What the throttle changes

	Without it	With it
Regen strength	fixed in the app	metered by thumb while riding
Long descent	one value for the whole ride	more engine braking exactly where you want it
Town riding	same value as off-road	looser when you want to roll
Changing the setting	phone, app, stop	thumb, on the move

The difference is biggest on long descents and in technical terrain — where one fixed regen value is always a compromise. On flat city roads the throttle gives you less.

What you get

Thumb throttle

Original TORP part

Hex key

Included for the install

TORP stickers

Four in the box

Warranty

Manufacturer warranty plus 2-year EU statutory rights

What is not included — the loom

The manufacturer states it plainly: the wiring loom is not supplied with the throttle. Without the right loom you cannot connect it to the controller. Before you order, tell us which controller and which bike you run — we will pick the right loom and confirm whether your current one is enough.

Mounted on the handlebar next to the throttle.

What comes in the box: throttle and hex key.

Manufacturer specification

Function	control of regenerative braking strength
Mounting	handlebar, next to the throttle
Connection	into the TORP controller loom
In the box	throttle, hex key, 4 TORP stickers
Compatibility	Sur-Ron Light Bee and Ultra Bee with a TORP controller

The manufacturer states neither the dimensions of the throttle, nor the handlebar diameter, nor the connector type. We do not guess — if any of those is decisive for you, we will measure a unit from stock and get back to you.

Sur-Ron Light BeeSur-Ron Ultra BeeTORP controllerregen

Before you order

The loom is not included — tell us which controller you run and we will pick the right one.
The throttle works with TORP controllers; the manufacturer does not offer it for the stock Sur-Ron controller.
You need free space on the bar next to the throttle.
Not sure whether your loom has a free connector? Send a photo and we will check.

Frequently asked questions

Is the wiring loom included?

No. The manufacturer states this plainly — the box holds the throttle, a hex key and stickers. We match the loom to your controller, so message us before ordering.

Will it work with the stock Sur-Ron controller?

The throttle is intended to work with TORP controllers. The manufacturer does not offer it for the stock controller.

Does it replace the brakes?

No. It controls engine braking — the disc brakes remain your primary braking system.

Why bother, if I set regen in the app?

Because in the app you set one value for the whole ride. The throttle lets you meter it on the move — one way on a descent, another around town.

Complete the build

TORP TC500 2.X controller – Light Bee

The controller this throttle works with.

TORP TC1000 2.X controller – Ultra Bee

The strongest controller for the Ultra Bee — regen under your thumb as well.

TORP Full-Color display

Controller and battery data without reaching for your phone.

Regen under your thumb, not in an app

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Guide

Sur-Ron Light Bee Power Upgrade: TC500 or TC1000, TM25 or TM40?

Two TORP controllers (TC500, TC1000) and two motors (TM25, TM40) for the Light Bee. Full specs, real differences and a straight answer: which one is for you.