Specter 2306.5 1900KV vs 2105.5 vs Flywoo ROBO 1003
One price is one motor. 2306.5 1900KV is 5" 6S, 2105.5 2650KV is a lighter mid-size, ROBO 1003 14800KV is 1–2S and 3.3g. They are not interchangeable.
KV without a cell count is a guess. These three listings are the motors TechHobby customers keep buying, and they are not interchangeable. Each price is one motor. A quad needs four of the same KV.
5" freestyle on 6S — Specter 2306.5 1900KV (₹1,799)
The HGLRC SPECTER 2306.5 1900KV is a 7075 bell aimed at 5" freestyle. 1900KV on 6S with a 5" prop is the usual band. Hang WinDancer 5043 props on it and feed it a CNHL 1300mAh 6S. Four motors are ₹7,196 at the listed unit price. Another 5" option in the same window: GEPRC SPEEDX2 2207 at ₹2,799 (1960KV or 2050KV).
Lighter mid-size — Specter 2105.5 2650KV (₹1,599)
The HGLRC SPECTER 2105.5 2650KV is a smaller stator. The higher KV is there because the pack is often 4S, or the prop is smaller than a full 5". Do not drop it onto a heavy 6S 5" freestyle build just because the name says Specter. Match KV to voltage, then to prop size. If the whole bill of materials is still open, the custom build wizard separates 5" freestyle from whoop and long-range before anyone orders four bells.
Whoop and 1–2S — Flywoo ROBO 1003 14800KV (₹1,299)
The Flywoo ROBO 1003 14800KV is a 10mm micro motor:
- Stator 10mm diameter, 3mm height; body about 13.5×9.2mm
- Shaft 1.50mm, mount 3×M1.4 on a 6.6mm circle
- 9N12P, N52H magnets, 1–2S only
- Weight about 3.3g with 4cm wire
It belongs on a light whoop or 2" build with a 2S pack such as the MiniStar 650mAh, not on a 5" frame. 14800KV looks huge only because the voltage is tiny. Four motors are ₹5,196 at the listed unit price.
Browse the rest under motors. After a crash, spin each bell by hand. Gritty or bent means replace that one. A clean bell with a broken blade only needs props. Burnt boards: FC or ESC repair.
Frequently asked questions
Is the price for one motor or four?
These listings are individual motors. A quad needs four matched motors of the same KV.
Can I put a 14800KV ROBO on a 6S 5" quad?
No. The ROBO 1003 is a 1–2S micro motor, about 3.3g, M1.4 mounts. A 5" 6S freestyle quad wants a 2207 or 2306 class motor around 1700–2100KV.
What stator is the Specter 2306.5?
A 2306.5 class bell in 7075, listed at 1900KV. That KV is meant for 6S with a 5" prop, not for a 2S whoop.
Why is the 2105.5 2650KV?
Smaller stator, often a 4S pack or a smaller prop. Do not drop it on a heavy 6S 5" freestyle build just because the name says Specter.
Do I replace all four after one crash?
Only if that bell is bent, the shaft is scored, or it feels gritty. A smashed prop is cheaper. See the WinDancer 5043 guide.
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