@Rithblu a mountain board build has always been on my todo list (near the bottom) but these mounts make a MBS built with locally sourced used parts jump near the top - these look great!
As of know I only have one pair made and itās not perfectā but its symmetrical and clean, as long as you know that I havenāt tested it with belt yet I can sell you these and the ATS clamps with hardware for 130.00 + shipping. I think 450mm is going to be too short.
Thank!! appreciate that. 
OK Iāll take em. Sending you a PM with my paypal information for invoicing. $130 for both mounts, clamps and hardware.
Why not dual idlerz
Thatās still an option, I want to do this in that area.
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OK maybe leave the middle solid for the logo and bring the duals back. Strength over weight reduction
Iāll probably go with this.
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They look amazing!
Same design as the one i sent you. Just a little more tweaking.
Ironically I still havenāt seen the ones you sent me. I havenāt been home for 5 1/2 weeks and I donāt suspect Iāll be home for at least another 2-3 weeks. The double idler looks nice! I may get a set for my son for his birthday next month.
Do you CNC wheel gears for the MBS fivestar hubs?
Nope he donāt and 3d printed is all I could find
Nope I tried just take to much of my time.
If you find them in aluminum for mbs post a link
I Have couple used carbon fiber deck looking for best offer/ you pay shipping.
#1 is a enskate fiboard 
#2 is a NERV 
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Wait what? - Never seen before lol
Iāve designed a motor pulley cover, it does need some slight tweaking but Iāll post the stl when itās ready.
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I love to machine it if your willing to share an IGES file.