<span style="font-size: medium">DYNAM "DETRUM" MOTORS are made by the TOPBAND factory</span></p>

The range of Dynam Detrum motors can be seen at: http://www.dynam-rc.cn/Products_31_1.html -However, Dynam themselves give no detailed specs -e.g. weight, dimensions, for their motors.
-Dynam motors are also sold by Hobbypartz and Grayson Hobby, and others. Very frequently however, there are very few detailed specs for these motors, I am not sure why this the case.Hobbypartz, for instance, give good detailed specs for their Rocket and Optima motors ...

The range of Topband motors is at: http://www.topbandmotor.com/en/chi/a...&amp;comid=113

Dynam Detrum BM2810A-KV850 (pic 1) - http://www.graysonhobby.com/catalog/...50-p-1979.html
-same as: Topband AE2810-01D, 47g (pic 2) - http://www.topbandmotor.com/en/chi/p...&amp;comid=113</p>

Dynam BM3715A-900kv (pic 3) - http://www.graysonhobby.com/catalog/...or-p-1975.html
-same as: Topband AE3715-01A, 113g (pic 4) - http://www.topbandmotor.com/en/chi/p...&amp;comid=113

EDF MOTOR:
Dynam BM2815D-KV4000 EDF motor (pic 5) - http://www.dynam-rc.cn/Products_view_124.html
-same as: Topband AE2815D-01B, 71g, Kv 4000 (pic 6) - http://www.topbandmotor.com/en/chi/p...&amp;comid=113</p>

<span style="font-size: small"> -It is clear that ALL Dynam "Detrum" motors, are made by the Topband factory in China
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