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    Leaf / leafmotor / leafbike high efficiency 1500w motor

    Tire diameters.... A. The Schwalbe Pick-Up in size 24x2.6" should have an outside diameter of 637mm (65mm width x 2 + 507 bead seat diameter = 637mm) B. The same outside diameter 26" tire would be 1.54" wide. Most bicycle tires have an aspect ratio of 1:1...which means the height is the same...
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    Leaf / leafmotor / leafbike high efficiency 1500w motor

    I'd like to know if there is a difference between the 2000w 60v motor and the 1,500w/52v motor as well. My guess is they are identical but I have not verified it. Why a 20" wheel instead of a 24"? I prefer a 24" just so I can use a one cross lacing pattern instead of a Radial/Modified...
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    Leaf / leafmotor / leafbike high efficiency 1500w motor

    I would go with a 52v/14s battery if it is legal in your area. 52v/14s is 58.8v when fully charged and will give you a little more speed, a little more capacity/range, and more power with less heat than a lower voltage. Power=VxA and the "A" is what does the heating. Actually it is the...
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    Leaf / leafmotor / leafbike high efficiency 1500w motor

    The 24" wheel will work in a frame that came with 26", 27.5", or 29" wheels but there are a few things you'll need to watch out for: A. Ground Clearance...your bottom bracket will be pretty low and your pedals will hit the road if you turn very sharply. The way I deal with this is I change my...
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    High performance & durability Cannondale Semi Recumbent

    I built a full recumbent bike about 10 years ago and I eventually abandoned the project because it was too unstable :). I still like the aerodynamics and I may do it again if I want to chase a Land Speed Record at Blytheville, AR with the East Coast Timing Association.
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    Leaf / leafmotor / leafbike high efficiency 1500w motor

    IF I had it to do over again, I'd go with a Leaf 4T motor in a 24" rim and I'd run a Schwalbe Pick-Up 24x2.6" tire. This is a link to the tire: Schwalbe Pick-Up | Super Defense | Black-Reflex | 26x2.15 | Addix E | 11159144 You have to scroll down a little bit because the 24x2.6" size is not...
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    High performance & durability Cannondale Semi Recumbent

    Below is a pic of the recumbent I'd like to try...M5 Low Racer: Wonder how it would handle with a motor in the rear and a battery under the seat :). They also make a "tail kit" for it to give you some storage and reduce the overall aerodynamic drag.
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    Suggest me a strong 26" rim ~40mm width

    What about an Alex MD35 rim: MD35 - Alexrims I use the MD35 on my off road bikes in a 27.5" diameter and they have held up well. The MD35 also comes in a 26" version.
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    Suggest me a strong 26" rim ~40mm width

    I agree...I have a Schwalbe Pick-Up 24x2.6" waiting in the garage if I ever lace up my 24" rim :).
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    Hub motor recommendations for a cargo bike in a hilly town

    They don't recommend a Radial lacing pattern, they said "The spoke holes are paired sufficiently close that there is NO NEED to have the spokes cross over. With a radial lacing the spokes have an effective angle that is the same as a regular hub with a triple cross." In the unique case of...
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    Hub motor recommendations for a cargo bike in a hilly town

    First of all, changing the winding will NOT give you more torque! The torque per battery amp is set for a given motor design no matter what winding you use. Secondly, you are comparing apples and oranges when you compare the Bafang G60 which is a geared hub motor to a Direct Drive hub motor...
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    Favourite high power hub motor?

    Where did you find the efficiency for the motors with the .35mm laminations and the 55mm stators? I haven't been able to find anything. I was considering sending Crystalyte an email. Thanks
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    Leaf / leafmotor / leafbike high efficiency 1500w motor

    I agree...I ran a 20 wheel and a 4" tire on a bike that came with 27.5" wheels and I have also gone the other way and ran a 29x3.00 tire on a bike that came with 26" fat tires. I was thinking of using a 24" wheel and V-brakes in a frame that came with 26" wheels so the wide 24" tire would...
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    Favourite high power hub motor?

    Has anybody considered and/or tried the Crystalyte UFO or H55 series motors? The stator is 205mm in diameter and 55mm wide/tall. They weigh a little under 20 lbs so not nearly as heavy as the QS205. I am waiting on a response from Crystalyte about the differences in the UFO and the H55...I...
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    Leaf / leafmotor / leafbike high efficiency 1500w motor

    Brakes....what type/design of clamp on the rim brakes is the best for the rear of an ebike that is running a 3" wide tire on a 40mm internal width rim? Is there a specific brake you would recommend...link please? Pads/shoes are another discussion but that can wait. Potential examples...
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    Leaf / leafmotor / leafbike high efficiency 1500w motor

    It might unintentionally end up as a Mullet bike but only because the 24" rear wheel is a requirement to help with over heating and a 26" front tire handles better...but that is TBD. I have compared the handling of a 20" front wheel to a 26" and I liked the 26" better because the 20" wheel was...
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    Leaf / leafmotor / leafbike high efficiency 1500w motor

    I have not tried the Salmon pads...I may have to do it now that I am aware of them :). Thanks The other disadvantage of rim brakes is they wear your rim. It is much easier and less expensive to replace a disc than it is to replace a rim. On the advantage side, rim brakes are lighter.
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    Leaf / leafmotor / leafbike high efficiency 1500w motor

    I agree the list is pretty short. My list of requirements for a donor bike is below: A. Disc brakes front and rear. I appreciate them when a clueless car driver pulls out in front of me when I am doing 45 mph. I prefer hydraulic calipers but the cable operated calipers work OK if you keep...
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    Leaf / leafmotor / leafbike high efficiency 1500w motor

    Not when it is wet. The coefficient of friction between steel or aluminum and wet rubber is somewhere close to ZERO :).
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    Suggest me a strong 26" rim ~40mm width

    Wide rims are nice but part of the problem is nobody makes a good bicycle tire that is wider than ~2.8" and the only "good" tire I know of that is that wide is a Schwalbe Super Moto-X 27.5x2.8". After that, the widest "good" tire is a 2.6". The Schwalbe Pick-Up and Super Moto-X along with the...
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    Leaf / leafmotor / leafbike high efficiency 1500w motor

    Same here except finding bikes with disc brakes is pretty challenging. I can swap forks to get a disc on the front but I'd prefer to have the brackets for the rear caliper come on the bike from the factory. Ordered a crank from "Cleary Bikes" with 89mm crank arms and installed it on my Schwinn...
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    Grins All Axle V3 Fat Bike Motor

    Just to jump on Chalo's comment a little bit...the 10T sprocket is very small and there are two problems: A. The small radius of curvature requires your chain to flex more which will wear your chain faster than a larger radius. B. The number of teeth that are engaged with the chain is very...
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    Fat Bike High Power Motor options (3000W+)

    I sent NBPower messages repeatedly asking who produces their motors and I could never get an answer. For that reason, I ended up going with a Leaf motor with a 35mm stator. It is probably some little mom and pop shop in China...that could or could not have decent quality, I couldn't find the...
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    Leaf / leafmotor / leafbike high efficiency 1500w motor

    I am keeping an eye out for a steel Mongoose or Schwinn mountain bike frame with disc brakes and 26" wheels. I think the Schwinn Axum 29er is going to work pretty good once I change the crank arms. The Axum actually came in two frame sizes...17" and 19", mine is a 19" frame. I seriously...
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    Leaf / leafmotor / leafbike high efficiency 1500w motor

    Just installed a 26" front wheel with a Schwalbe Super Moto-X 2.4" wide tire on it and I already had a 26x2.5" Maxxis Hookworm on the rear with the 26" wide rim from Leaf. The donor bike I am using is a Schwinn Axum 29er and with the 26" wheels/tires the crank arms are too close to the ground...
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