what’s the size of the o-rings in the BNM1 anyone know? I only have one left and I don’t really feel like fishing it out of the grease pit just to measure it.
1.5mm diameter, ID can be anywhere between 41mm and 44mm.
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Also what material can they be made out of? I’m searching for some replacement o-rings and I’m seeing silicone, nitrile, rubber and flourocarbon
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Is there any possibility of an “extended” BNM1 being made or released in the future? To enable compatibility with larger motors like 70xx and other thicc motors
whats the number of teeth on the gears for the 2.78 ratio?
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27/75
Are these gear drives hard on bearings? The reason I ask is I was using Momentum wheels and I had one of them fail (not on the gear side). When I was swapping back to my TB110’s, I was surprised to find that one of the bearings on the gear side had failed and came apart when I took the wheel off. After the fact, I do remember thinking it was noisier than normal, but it was still working fine. I am just wondering if I need to be checking this often.
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I think as long as you’re using correct amount of spacers it shouldn’t be any worst than any other setup.
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Will the new channel trucks have the same cross section of the current m1 adapters? Also what price should I expect and when are they going to be available? @Boardnamics
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No, way way too small. That is caliber II cross section. They’re 21mm square hangers, with the ends being 20mm squares. Hoping to get them all done by the end of this month.
Current price is looking like $100 each.
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Will there be compatible adapters to put m1 on them later on?
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It can be done, but I really don’t think anyone would want to run urethane on these trucks. They’re significantly wider than the already wide 270mm hangers.
I’m gonna be running some 165s on m1 so ideally I’d want to do that. I could pay for a one off (4 adapters) later down the line tho
Think you’d need the hanger ends made smaller to fit m1 drives
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Just chiming in to let Kevin know to keep up the awesome work. I regularly check the website to see what kind of new products / updates / specials might be happening and fully plan to use BN drives on future builds. I wipe my drives down every 3-4 rides to keep them looking clean.
I was gutted on the day I accidentally scuffed one of my drives on a rock, but I was also impressed by how robust their construction was and how they handled the impact.
Please keep up the development work and innovating, Kevin. This community needs products like this.
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There are files available to print some guards for these drives if you have a 3d printer handy.
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These thinga are fun. I have a set available for sale if anyone is interested.
Price and pics. Dm me
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What?! This is a vendor post…
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Just wondering what peoples thoughts are on 4.6 or 5.2 as a gear ratio and why.
The deck coming from 18/78 and is 4WD so my take on that is that I can probably gear as 4.6 and still have enough torque to satify… is that completely wrong or should work ok?
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