Pro .21 and .28 Engines from Jammin
Jammin Products from Ofna has just introduced two new nitro engines. A .21 (51250) and a .28 (51251) engine. Jammin has paid close attention to the details that are so important for off-road R/C racing. Such as durability, ease of tuning, and driveabilty. Jammin has preformed tweaks to the materials, crank timing, and tolerances all…