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Gear Shifter Spindle Saver for Honda CRF300L RALLY

Print Profile(4)

All
A1 mini
H2C
P1P
X1 Carbon
A1
H2D
H2S
H2D Pro
P2S
X1
X1E
P1S
X2D
A2L

0.2mm layer, 3 walls, 100% infill 0.4 Nozzle
0.2mm layer, 3 walls, 100% infill 0.4 Nozzle
Designer
29 min
1 plate
4.3(4)

0.3mm layer, 3 walls, 100% infill 0.6 Nozzle
0.3mm layer, 3 walls, 100% infill 0.6 Nozzle
Designer
25 min
1 plate
5.0(2)

0.4mm layer, 3 walls, 100% infill 0.8 Nozzle
0.4mm layer, 3 walls, 100% infill 0.8 Nozzle
Designer
24 min
1 plate

0.1mm layer, 3 walls, 100% infill 0.2 Nozzle
0.1mm layer, 3 walls, 100% infill 0.2 Nozzle
Designer
2.3 h
1 plate

Open in Bambu Studio
Boost
20
39
11
0
50
34
Released 

Description

This model is a 3D-printed replacement version based on a metal spindle saver I found and tested.
I recreated the geometry in CAD to offer a printable alternative that’s lightweight, affordable, and easy to install – while still providing real protection.

On the Honda CRF300L, a left-side crash often forces the shift lever into the ground. The impact transfers directly to the gear shifter spindle, which can bend or break. When this happens, the gearbox may get stuck in one gear and the bike becomes unrideable.

This 3D printed spindle saver forms a rigid protective barrier, absorbing and redirecting crash forces before they reach the spindle. It mounts to the factory points and requires no permanent modification.

Features

  • Protects the gear shifter spindle from bending or breaking
  • Helps prevent gearbox lockup after a crash
  • Lightweight but strong 3D-printed design
  • Bolt-on installation (uses factory mounting points)
  • Developed specifically for Honda CRF300L / CRF300 Rally
  • Tested in off-road and enduro conditions
  • Designed for FDM 3D printing

Recommended Print Settings

  • Material: PETG, Nylon (PA12), or PA-CF for maximum strength
  • Infill: 100%
  • Walls / Perimeters: 3
  • Orientation: print on its side for better Z-layer strength

     

This is a simple, inexpensive upgrade that provides real crash protection – ideal for enduro, trail, dual-sport, and ADV riders using the Honda CRF300L.

Comment & Rating (11)

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License

This user content is licensed under a Standard Digital File License.

You shall not share, sub-license, sell, rent, host, transfer, or distribute in any way the digital or 3D printed versions of this object, nor any other derivative work of this object in its digital or physical format (including - but not limited to - remixes of this object, and hosting on other digital platforms). The objects may not be used without permission in any way whatsoever in which you charge money, or collect fees.