March 22, 2026
Description
I modded BT123's miniBFI idlers (which were based on Clee's Beefy Front Idlers) to get more belt tensioning travel on my Trident Stealthchanger build. When mounted flush with the Y linear rails, these provide just enough clearance in front for the Tapchanger liftbar
Requires per idler:
x2 M3 heatsets
x2 M3x30 FHCS flat head cap screws
x4 M5x10 BHCS button head cap screws
x4 M5 Roll-in nuts
x1 5x18mm pin OR M5x16 BHCS screw (to hold the bearings)
x2 F695 bearing (can re-use from stock idlers)
x2 5x7x1mm shim (can re-use from stock idlers)
License:
GNU General Public License v3.0
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