![]() ![]() This proprietary open transfer port design is unique to only the BBR Tuning line of engine kits. The cylinder body of all BBR Tuning 2-stroke motorized bike engines features an open transfer port design. Due to the high-vibration nature of a 2-stroke engine, the 6mm stud configuration is prone to breakage, especially if the studs are not mounted properly or over-tightened. By comparison, the Mega Motors line and most of our competitors use 6mm engine mount studs. ![]() Motor mount studs are upgraded to 8mm stud diameter. By comparison, the Mega Motors line of engines, as well as most of our competitors use 30mm intake stud spacing. Intake and exhaust ports have 40mm intake stud spacing for increased airflow into the engine’s combustion chamber. ![]() All bolts have been upgraded to use Allen key heads to ensure- these bolts allow the bolt to be torqued down properly without the risk of striping. A full upgrade of all engine hardware- all of the hardware is upgraded to Grade 8, ultra-strong steel. ![]() On top of the upgrades you see with the Mega Motors line, 2 Stroke BBR Tuning line feature: 415H heavy duty chain (compared to 410 standard bike chain with other brands)īBR Tuning: The BBR Tuning line of motorized bicycle kits are fully upgraded and considered to be the best quality engines on the market. High grade ball-bearing used on the main bearing. High-grade needle bearings on both ends of the crank. The Mega Motor engines feature all the standard upgrades you would expect from a top tier engine. But don’t let the price fool you, this line of motors are fully capable, reliable work-horses that are leaps and bounds better than what the competition offers. If you’re looking for a cheap bicycle engine kit, this is the model for you. Mega Motors: The Mega Motors line of bicycle motor kits is our entry-level, budget-friendly line of motorized bike kits. Most prone to engine flooding- if the carburetor is not adjusted properly, or the fuel is not turned off during storage, the engine can flood which will prevent the motorized bicycle from starting.īikeBerry offers 2 brands of the 66/80cc 2-Stroke Motorized Bicycle Kits: See here for our carburetor adjustment guide. Due to differences in elevation, it is recommended to adjust the carburetor’s air/fuel ratio to accommodate the differences in atmospheric air conditions in your specific area. Fine-tuning of the carburetor air/fuel ratio may be required. As a result, it is recommended that all bolts and hardware are inspected prior to every ride.
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