8/30/2023 0 Comments Alta exr![]() ![]() The Alta BMS (battery management system) is responsible for equalizing the charge of each cell and prolonging life. Lithium Ion batteries are generally good for holding 80% after 2000-6000 of deep cycles depending on how fast they are charged, the temperature they are used at and how fast they are discharged. "Oh but the battery will wear out" say the smelly gas covered idiots. No smell of gas in your enclosed trailer or van. No buying separate gas can or spilling gas on your hands when you fuel up. No burning exhaust to mar your pants burn your skin. Tip it over and there is no flooding of the carb or oil spitting on the ground. The Alta runs as good at 10,000 feet elevation as it does at sea level. The reason is simple - 4-strokes continually pulse the chain with brief violent pulses of power. From my experience, even the chain is lasting longer than on my ICE bikes. You want to spend your time having to work on the bikes, go old school. No oil changes for the first 1000 hours, no air filters no matter how dusty the conditions, no valve adjustments, no clutch to change, no breaks to wear out -The Alta is a rider's dream come true. Oh yea, don't forget the lack of maintenance. While the Alta will do 75 MPH top speed, the 450cc ICE bikes have faster acceleration past 55 MPH or so (hope the wife doesn't' read this). I had him by 25 feet by the time I hit 65 MPH and let off the juice to let the 450 ass me. The Alta wheel came up again (only briefly) and I blew by the 450 like it was standing still. I then leaned in my 6'5" slightly marbled 230 pound body over the front and hammered the throttle again. I was now 15 feet behind the loud exhaust belching throaty 450. I hammered the bike (mode 4) and the front wheel came up forcing me to back down the power. I raced my neighbor's 120 pound 28 year old son who is a good rider on his new Yamaha YZ450R with an obnoxious pipe on it on a paved country road. This is why the rear wheel has much thicker spokes than your average dirt bike. That is 32% more torque AND that torque is always instantly available at any speed. The Alta EXR has 50 HP but 42 foot pounds of torque. Torque-Consider this: A new 2019 Honda CRF450R comes out of the box with 53HP and 32 foot pounds of torque. Power in mode 4 (overclocked) is simply crazy and for all practical purposes it not usable because your rear wheel simply spins any time you hammer the throttle -no matter what speed. In an hour and a half the bike is good to go again -but generally the bike is more ready than I am. I can tell you that after 20 miles in this mode, I was ready to sit and recharge. If I continually hammer the bike with wheel spinning acceleration in mode 3, brake hard as necessary, on the same hilly rides, I have gotten as low as 20 miles in range. I typically don't use this mode because I like more torque offered mode 2 or 3. On hilly rides, if I use setting 1 and I don't use the brakes and only regen for down hills or to stop, I have gotten 50 miles with perhaps 5% battery state of charge left. ![]() Makes me look like a better rider than I really am. You can literally stop anywhere on the climb and slowly crawl at 1 MPH up the hill. I am an average rider but the bike makes me shine like an expert on hill climbs and steep single track -super easy. The quietness enables you to see wildlife what would normally flee with 4 stroke bikes. You can hear the rear tire start to spin which helps you back off the throttle to maximize traction up hills. You are always in the right gear for everything -especially climbing technical single track or hitting the face of a jump. The first thing you notice is that the electric power is super controllable and it has crazy strong torque -smoother and more powerful than any bike at it's weight class. BTW, I am in the process of fixing the rear brake with the left hand rear brake kit -also cool. While I can't comment anymore on Alta performance under full MX race conditions (read my profile), what I can say is that with the exception of the rear foot brake, it is the best dirt bike I have owned - hands down. I expect that I am speaking for the rest of this forum with the following analysis: ![]()
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