FingerTech Brushless Mega Spark - Premium Planetary Gearmotor 2300KV

September '25 Updates! We have been working with a new factory that will be able to keep up with our demand, and at the same time we have switched to a larger M3 facemount screw and battleharden the gearmotor by threadlocking every screw.

FingerTech's Brushless Mega Spark Gearmotors are here to step up your beetleweight game!
We've taken the guesswork out of brushless drive. No more fiddling with mismatched adapter plates and reflashing ESCs - just drop them in your robot and go!

Features:
- Tuned for the perfect mix of speed and torque. With three KV choices (750KV, 1500KV, 2300KV) to match any wheel size, you can outdrive any opponent!
- FingerTech's signature extra long shaft can be used for added inboard/outboard bearing support, or for extra wide wheels! Use a rotary disc to cut off the excess.
- The huge 6mm diameter shaft is plenty strong for mounting drive wheels directly using 6mm Twist Hubs.
- A nearly drop-in replacement for the common 22mm Brushed Planetary Gearmotor, these are 2mm larger diameter, but 3.5mm shorter in length, and 13.1grams (0.46oz) lighter!

Motor Specifications:
- FT1806 Custom-wound High Performance Brushless Outrunner
- KV: 2300KV
- Motor Resistance: 0.15ohm
- Max Current @12V: 10A
- No-Load Current (with gearbox): 1.1A
- Stall Torque: Notes about Brushless Motor Torque
- Recommended ESC: BL40A-R AM32 Reversing Brushless ESC. You could use the cheaper BL20A, but AM32 firmware has better low-speed response than BLHeli_32.
- Diameter: 23.1mm (slightly smaller than the gearbox, so it won't rub on a wall if flush mounted)
- Motor Wires: 10cm 26AWG long with 3.5mm bullet connectors

Gearbox Specifications:
- Premium planetary gearbox with dual deep-groove ball bearings on the output shaft and metal gears in all stages.
- Ratio: 27:1
- Diameter: 24mm (0.94in)
- Shaft: 6mm diameter, 38mm length, hardened steel with precision ground D-flat for setscrews or D-bore hub.
- Starting Sept'25: Mounting holes: 4x M3-0.50 holes spaced equally on an 19mm circle, fits our Carbon Fibre Mega Spark Mount.
- Prior to Sept'25: Mounting holes: 4x M2-0.40 holes spaced equally on an 18mm circle, fits our Carbon Fibre Mega Spark Mount.

Gearmotor Specifications:
- RPM @ 3S: 945rpm
- RPM @ 4S: 1260rpm
- Length: 46.5mm + 38mm shaft (1.83in + 1.50in shaft)
- Weight: 71.5g (2.52oz) (much of that is the extra long shaft, which we recommend cutting flush with the wheel)

Max Power Point:
- Voltage (12V nominal): 11.92V
- Current: 10.3A
- Efficiency: 58.68%
- Torque: 0.7256N.m
- Power: 72W

Gearmotor Drawing

Battle Hardening:
* The below steps are good advice for all gearmotors, but we've actually found that a dab of hot glue squirted onto exposed screw heads and smooshed over the motor body does a great job of stopping screws from vibrating loose, and is super easy to do!
- As with every gearmotor, it is best practice to remove all the screws and reassemble using loctite. A small dab on each screw will be enough to keep them from vibrating loose. Sept'25 onward: We do this in-house to every Mega Spark now!
- Since the gearboxes are packed with grease, it will need to be cleaned off of the eight small Phillips screws before applying the loctite.
- Even better than loctite is a product called Vibra-Tite VC-3. Apply it to the screw threads, wait 30min, and it will harden to a plastic-like coating. Since it hardens before touching the greasy gearbox threads, it can do a better job of holding the screws in place.