When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
i did another test and find that at 2500 i can feel power but 5000 rpm, it dosent seem like there is power..power is felt most at between 2500 and 4500...what can be wrong?