I Need a Drive Train Expert (Pulleys/Belts/Wheel)

ESK8 Mechanics
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What pulleys/belt should I be using?

Drive Train: I have supplies shipping (Battery/Motor/ etc.) but I have not figured out the drive train mechanics.

Motor Setup: 280kv 6s Brushless

Battery: Two 3s LiPo in Series

Wheels: 65mm

I am specifically wondering what the teeth/width/length/(Distance apart b/w pulleys?) I should be using for my timing belt, motor pulley, and wheel pulley in order to maximize my speed given these parts.

  • I have been doing research and everything seems to provide different/complicated answers that have not been much help.

p.s. this is my first post on esk8, I love reading these. I am finally part of the community and have a DIY board in progress.

1 Like
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Why not just get a motor mount and pulley kit from one of the regular vendors? Did you already get that motor?

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Use this: http://calc.esk8.it/#{“batt-type-lipo”:1,“batt-cells”:10,“motor-kv”:200,“system-efficiency”:90,“motor-pulley-teeth”:15,“wheel-pulley-teeth”:36,“wheel-size”:83}|

For your wheels…you should have at least 80mm big wheel…Try Flywheels, or their clones, which are pretty cheap, or Orangtangs…for pulleys we usually use 14-16 teeth motor pulley, 32-40 teeth wheel pulley, 265mm long belt all of them are HTD5 and 9-15mm wide (12mm for single drive, 9mm for dual drive, 15mm can also be used, but it depends on thickness of your motor mount)

these links might help you: https://sdp-si.com/eStore/CenterDistanceDesigner http://www.eskatenation.com/directory/motors/

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Another great resource is this post by onloop. He goes into a lot of detail, but it is well worth the read.

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You also may consider getting some bigger wheels that readily accept pulleys, such as the ABEC 11 or Kegel Orangutan. You can get ABEC 11 copies on eBay for around $20. 65mm is good for a regular longboard, but when it comes to electric, you really want something bigger. Makes the whole ride a lot smoother.

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Yeah I already got the motor and I pretty determined to do this build without buying kits or anything like that!

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Yeah I think that will probably be my best bet wheel wise. Thank you!

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Awesome! Very helpful! I appreciate it very much! You da bomb.

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I would further stress the difference bigger and higher quality wheels makes.

83mm would be my absolute bare minimum size wise. You can get the 20$ flywheel clones and they work OK, but if you can spare the $ get the legit flywheels and get the softest duro you can find (75/78 iirc) - will make the ride smoother.

Depending on your roads and where you plan to ride - super rough - go bigger (90, 97, MBS 100’s). Again get the softest you can find. You will thank me later!

My favorite setup was my Subsonic GBomb on flywheel 97’s - super smooth and cush (the drop brackets do flex and take some vibration/bumps out).

Welcome and GL!

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I’ve got a few kits left pretty much as cheap as things get if you’re interested.

This is probably the most common ratio for gears that people use.