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  1. N

    Specialized SX Trail With Cyclone

    I have a mounting point for a spring loaded chain tensioner under the cover but i don't really need it so i removed it. I sized the distance so a half link chain fits well with the right amount of slack and i use a narrow wide chainring along with a a little bit of throttle at rest to preload...
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    Specialized SX Trail With Cyclone

    I tried that it, didn't work that well the motor torque would twist it out of alignment i have two aluminum plates that loop around the bottom bracket.
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    Specialized SX Trail With Cyclone

    This is the final iteration on this bike. The current setup runs 1500W continuous through a phaserunner into a cyclone. The drive train is single speed with very strong acceleration up to a top speed of 55 km/h. Its perfect for high speed and technical single track trails and i usually get...
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    LR specialized sx trail build

    3D printed myself a chain guide out of nylon. I wasn't having much luck with the off the shelf chain guides they where interfering with the drive sprocket so i designed my own. its a 2 part deal and mounts on my lower swing arm. Instead of the conventional approach of a fixed point slider or...
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    Help with Picking Battery

    I went with rc lipo4 i wish i could have went with an em3ev battery, but at the time they didn't have the 25r batteries so it didn't really work for me. I plan on buying a em3ev battery and will keep the rc battery as a backup the rc battery is annoying i just want something simple plug and play...
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    LR specialized sx trail build

    It replaces the top cap and its made from ABS. It should work on most bikes
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    LR specialized sx trail build

    Updated CA mount works on headsets with a top cap. http://imgur.com/a/yAbCJ#x7twQCj
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    LightningRods mid drive kit

    Hey Mike, Now that I've had the kit for a while i figured i would give some suggestions for improvements of your kit. The main thing i have noticed is that corrosion may be an issue the paint on the metal isn't the toughest particularly for an off road and user assembled situation. I...
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    LR specialized sx trail build

    The design i used is pretty specific to that head stock i could simplify it a bit so it just replaces a conventional sized top cap and slides into the steerer tube maybe add a few points for mounting the CA to make it a bit more modular. If anyone wants one PM me and we can probably work...
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    LR specialized sx trail build

    3d printed a mounting bracket for my cycle analyst Initial print to make sure i had all the dimensions right and to test the strength of the print.
  11. N

    LR specialized sx trail build

    yeah 45 amp on my phase wires and CA-DP plugs for my hall sensors
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    LR specialized sx trail build

    I used 45 amp black and red power-poles for my motor and battery interconnects and a 50amp SB series connector for my backpack connection.
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    LR specialized sx trail build

    you mean woven wire loom? if so i used the 3/4" stuff i am using 10 ga wire with the heat shrink over it it had a cross section of about 1/2" the 3/4" stuff collapsed down on to it pretty nicely keeps the weave really tight. If your trying to make the coiled wire i would suggest using doing 2...
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    LR specialized sx trail build

    Yeah they have a standard bolt pattern the smallest size you can get with that bolt pattern is the 65T it seems, there fairly cheap as well about $15
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    Downhill project motorcycle transmission

    Yeah it would have to be set up as a critically damped PID it would be weird if it oscillated around your set point. It would have to have a similar control system to one of those 1 wheel bikes but instead of being fixed to a vertical orientation there is a range of acceptable orientations and...
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    Downhill project motorcycle transmission

    Add A gyro sensor and dial back the throttle over a threshold angle to prevent loop outs or make it so you can hold a wheelie at a certain angle that could be fun. It would have to only come online at an angle you wouldn't see while climbing a hill or rate based so if cutting the throttle...
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    LR specialized sx trail build

    I can reach about 55 km/hr which is perfect on a mountain bike and i bought a different chain ring (65T) off ebay it came gold anodized
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    LightningRods mid drive kit

    Yeah i wouldn't pull on the plastic I would have grabbed the arms on to the freewheel. If i was having to remove the pulley often i would tap the large ID of that aluminum hub and machine a a screw with a pin that pushes on the shaft. kind of like a crank arm removal tool.
  19. N

    LightningRods mid drive kit

    The pulley was stuck i'm guessing the key on that shaft bit into that aluminum adapter i would need a "puller" to remove it something like this (http://www.apexinds.com/hardware/Pullers_2_Jaw-3_Jaw-Slide_Hammer-Posi-Lock-Bar.html) I didn't have one and i figured i could weld it without any...
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    LightningRods mid drive kit

    :roll: Aw just a little welding mishap i didn't have a puller to remove the pulley so i welded it with it on and my welding blanket shifted and the heat caused some cosmetic damage to the inside flange of the pulley. It's fine though didn't effect the pulley belt interface.
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    LightningRods mid drive kit

    My fix for the upper sheet twisting
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    LR specialized sx trail build

    Switched to a 65 tooth 219 sprocket from an 85 tooth because the power from this thing was eating the 10 tooth sprocket on my derailor the 14 tooth seemed to be handling the power alright, So it is now my highest gear. I have a bit higher top speed With this gearing and the i like the smaller...
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    LightningRods mid drive kit

    Not quite equal and opposite forces, because the pulley is much larger than the sprocket. The torque on the sprocket and pulley are equal and opposite but to have equal forces there diameter would have to be equivalent the reaction forces on the sprocket side will always be higher due to its...
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    LightningRods mid drive kit

    You could send some sugru ( http://sugru.com/about ) with you kit and the perfect interface between the plate and down tube could be formed by the end user.
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    Revolt Rv-120 pro/ norco aline Video teaser

    Are you planning on having freewheel on the brake side and have only re-gen braking for the back wheel? or have a brake sprocket combo on your electric drive side?
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