Brushless electric Motor for Bicycle
What is an Astro Powered E-bike? Watch this 19 second video of a 55-MPH E-bike speed run to get an idea what Astro is about:
Yes that’s right Astr0 is sex and spinning magnets!
It turns out that electric bike makers (with the advent of lightweight and powerful batteries) are also looking for highly efficient, powerful, small, lightweight sexy electric motors. Astro motors represent the top rung of RC motor technology for those seeking to build the best E-bike possible.
Astro Flight was founded back in 1969 by electric motor guru Bob Boucher, with the intention of making high quality made-in-USA motors for RC aircraft and even a few human powered aircraft:
Astro Flight specializes in small and powerful inrunner motors. An inrunner is a motor where the rotational core is contained within the motor’s can. The Astro is a completely sealed motor. The pluses to this are that you do not have to worry about debris or water getting into your motor, the bad side is Astros tend to run hot when run hard, especially when climbing. The brushless motors that Astro markets for electric bike builders are the 3205, the 3210, the 3215 and the 3220, all considered industrial sized motors offering incredible power to weight ratios at a price:
3205 1lb $400 max 2hp
3210 2 lbs $425 max 4hp
3220 4lbs $700 max 8hp
When you look at the Astro motors, these all have the same diameter of can, and the various power levels are achieved with additional length. The 3210 is twice as large as the 3205, and the 3220 is twice as large as the 3210.
One important characteristic of Astro Flight motors is that they are designed to be run with RC controllers and are most efficient (90-95%) when run at high RPMs. The most efficient RPM is somewhere around 7500. The amperage needed to obtain this RPM depends on the voltage you are running, and the wind of your motor. 7500-RPM is far too fast to be useful for an electric bike with a single-stage chain to the wheel, so the E-bike builder needs to use some kind of gear reduction system. At 7500-RPMs the motor must be reduced by at least 10:1 (750-RPM) and for some builds it is as high as 40:1 (187-RPM).Reassurance hits different when it's not asked for meaning? What does the number 27 mean? What is the saying called "you can't teach an old dog new tricks"? How to make google default search engine? How long to let steak rest? What is the meaning of pride month? How to make a poached egg? How to do glove tricks? What is the meaning of a white dove? what is google drive icon helper What does reference range not detected mean? what is this web helper and how can i get rid of it? where to delete browser helper objects How to make google default search engine? How to make rubber band magic tricks? what is the purpose of a recursive helper method What does expound mean? What does waived mean in nfl? What does know mean? How to apply tips to damaged nails? What is the meaning of the name chase? how to provide services on hire a helper how to be helper on hypixel What does sponsored mean? What dies acquit mean? What does jumping the broom mean? How to do connor's coin tricks? How much to spend on rent? What does it mean to be a feminist? How long to cook corn? What is the meaning of teaching? What does tc mean on a car? how to delete spotify helper what is the difference between cytotoxic t cells and helper t cells How to play old wordles? What is the difference in meaning between a crash and an accident? How to grow ginger? Easy tricks to figure out when to use i instead of me? How to look at shadow warrior tips? What does cfc stand for? What does bool mean? How to treat frostbite? How many times do we have to teach you this lesson old man? What is the meaning of holistic approach? How to make out? How to get rid of intrusive thoughts? What is the meaning of a bee? How to get rid of mice in walls? What does a white rose mean? What does cara mia mean? how to get steam web helper How to put a condom on? What time does the superbowl start? What does a teaspoon look like? What does compose mean? What does dark blue mean on a mood ring? What weight fishing line is best for magic tricks? Why do people try to teach cats tricks? How to write a rhetorical analysis? How to teach puppies tricks? How to forgive yourself? How to tell when a pineapple is ripe? how to hire a domestic helper from africa What does bi mean? What illnesses are going around in your area 2021? What kind of scooter is good for tricks? Strumming tricks when playing the uku? What about you meaning telugu? How to make glue? What are smart glasses? what is amazons new voice activated helper What is polytheism? Quickbooks what is paycheck tips? What is the difference between a 64 bit and 32 bit linus tech tips? What is the meaning of scientific? What is a harem? How to use gardein beefless tips? How to cook chinese boneless pork tips sytle? What is the meaning of dba in business license? What does honorary doctorate mean? How long to cook pork tenderloin in oven at 375? What is the red scare? What does ss mean in text? Tips for someone who is terrible at putting on makeup and has terrible skin? therapist helper how do you add the ucd10 codes What does it mean when a dog howls? What does your mom mean? Proana tips and tricks when pregnant? How the tables have turned meaning? How to charge airpods? Tips for students who dont speak english? How to get rid of a hangover? What is vca jewelry meaning? How long does it take for milk to come in? Where to buy acrylic nail tips? How are the best card tricks done? How to find the area of a square? What level does type null evolve? What are pg tips?