Alomejor Bicycle Engine 49CC 4 Stroke Gas Engine Motor for DIY Bicycle Bike Conversion Motorized Bike Kit

Product Information

If the bike is used only on flat ground then the freewheel will not increase ride time by much, however if the bike is being used on ground that is not flat then when going downhill it will allow the bike to freewheel with the motor off which will increase ride time. the cc size of the engine is a function of the bore (diameter of the piston) and stroke (length of travel of the piston) together as you can see above some models have the same piston dia.

Someone told me that 49 cc works better, he actually put my old 49cc on his bike and said it works great! With that being said for an 800 Watt motor I recommend gearing the bike to go around 24 miles per hour. VAlso the hole that was machined for the jackshaft bearings was too large for the bearing allowing the shaft and sprocket to wander and jerk around. of the sellers have no idea what they are talking about and put too much jibberish out there that people listen to. If an 800 Watt motor is properly geared it will increase the ride time by over 20% compared to a 1000 Watt motor with the trade off being that the bike will have a 20% slower top speed.Now I know I can just replace the 38mm cylinder and bore easily, however, I was wondering if this would be a good time to try to upgrade to a 44mm big bore kit. Disclaimer: Operating a bike, motorized bicycle or bike with a bicycle engine kit installed involved some risk of serious bodily injury. hi ESP hey I have almost the same bike and would like to do the same electric conversation swap and would like to know if over the past 3 years anything has been upgraded? The bike I have also has a much smaller gear on it right now and I believe it is a slightly smaller similar version of the bike pictured. It is not very difficult at all and you really need very very few modifications just a great product.

Most purchases from business sellers are protected by the Consumer Contract Regulations 2013 which give you the right to cancel the purchase within 14 days after the day you receive the item. Each BBR Tuning bicycle engine kit comes with a digital installation guide that takes you step by step through installing, adjusting, and fueling your brand new engine kit for the ride of your life. Sorry hellboy i wasn't trying to poke fun at you sometimes i just can't help to be a smart A** I wasn't trying to insult you at all, i know how impatient you can be waiting for a new bike I'm on my 3rd bike and everytime i get a new one i try to find out as much info in advance as i can don't take it to heart i was just messin with ya a little, it will be very obvious when you get the bike like i said it's on the left side down low on the block and mine actually had a long white sticker on the top of the motor on the transmission case that had a real long number on it but the serial number was the very first part of the number on the sticker so check both places and let us know what it says also look at the number cast on the head. The all new BBR Tuning 5G 4 stroke bike engine kit features a centrifugal clutch and pull start enhancements, with all of the latest features and upgraded components BBR Tuning has to offer. by the way good luck with dh hell i got my chopper delivered by them and the whole back of the box was crushed and i had to get replacment parts for half the dang bike plus there were parts missing out of the box!the problem is that a lot of the engines stamped 48 and 49cc are actually 72cc, when you remove the head you can measure the bore size and you will notice that almost every engine stamped 48cc that I have come across is actually 72cc.

If you’re looking for a tough, reliable, long-lasting bicycle engine kit look no further than our BBR Tuning 5G 4 stroke engine! If you have room to fit larger than 10Ah to 12Ah batteries in the bike that will provide a longer ride time.

The 36V 800W motor can be ran in both clockwise or counterclockwise directions so it can be used for a left hand chain drive bike. With an 800 Watt motor the gear ratio should be lowered a little because it will not be able to power the bike to 27 MPH.