F4i Shock Conversion
Need the following--
- Honda F4i shock--Available very cheap on E-bay--just search "F4i shock"
Bushings that must be pressed into the lower shock mount--these bushings can be found at McMaster Carr (See link below). Sizes are as follows:
- For the lower bushings: 2x part number 6658 K44--20mm shaft diameter, 24mm OD, 20mm length. Prices and order looks like this:
Line
Quantity
Part Number
Description
Unit Price
Total Price
Ships
1
Each
Metric SAE 841 Plain Bronze Sleeve Bearing For 20 mm Shaft Dia, 24 mm OD, 20 mm Lg
$3.43
$6.86
today
Merchandise
$6.86
- From the shock you need to remove the bearing from the bottom mount. You can bring this to a shop to press out for you, and have them press the new bronze sleeves in at the same time--otherwise you can work with it on your own.
- Fit check the pin from the RZ linkages to see if you need to lightly sand/file the brass bushings. When installed, the sleeves compress a bit and may need to be sanded a little bit. This has been my experience on every one that I have done.
- Drill out the top shock mount using a 12mm drill bit to accept the upper shock bolt from the RZ. The existing sleeve in the top mount is large enough to be drilled out and reused. The sleeve can remain in the shock to do this.
- Check your manual as to how to take the rear end apart in order to get the shock off so that you can put the F4i shock in--if you dont have a manual...you should get one!
- Reuse the RZ bolts to mount the new shock into place and re-install the rear end!
- Now find a place to mount the remote resevoir--some companies make mounting brackets, or you can use hose clamps to mount it to the frame somewhere accessible for adjusting.
I would space out the top shock mount--the F4i top mount is narrower than the stock shock. Stock measures about 40mm, F4i measures about 28mm. It is not likely that there will be issues if this is not done, but I am not willing to play the odds. This can be done with washers, or cut the sleeve from the upper mount of the stock shock. It already has the correct dimensions.
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