Tekin Pro4 vs Pro4HD Brushless Motor Comparison

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Here's a look at the Tekin Pro4 (540 sized can) vs the Tekin Pro4 HD (550 sized can). I go over differences in size and show off the great looking and performing motors. I also list off diameter and length so if you have some concerns on fitting your RC, this should help.
Here's a link to Tekin's site for more information on The Pro4/Pro4HD motors:
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