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Author Topic: Aftermarket shock - work in progress  (Read 161 times)


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Aftermarket shock - work in progress
« on: February 14, 2018, 11:19:14 PM »

After my rear shock https://zeromanual.com/index.php/Unofficial_Service_Manual#Rear_Shock failed on my 2013 S, and I couldn't find a reasonable replacement; I went to the internet!
It took me 4 shocks to find 2 that almost fit, and I'm still looking for a good 5th final one.

    2013-2014S - The Yamaha R3 has the same length rear shock, but the spring is too wide; it doesn't fit.
    2013-2014S - Fastace Rear Shock BDA-51AR/58-AR has a weaker spring, and is rotated 90 degrees; it doesn't fit.
    2013-2014S - Wotefusi 260mm Central Air Shock Absorber Universal Fit - fits when mounted upside down. Need to cut/grind down the bushing.
    2013-2014S - TDPRO 260mm 10.2 Almost fits; the area on top of the spring is just slightly too large. I had a welder make a mounting bracket, but now the rear of the motorcycle sits up higher.  See the attached pictures.

Next thing to perfect the rear suspension -
Option A: put a lowering bracket on it to get it closer to stock.
Option B: Find a shock that's ~ 1 inch shorter (~9.2 inches) with similar spring characteristics.  A lot of what I see in that range is either 1200lbs or 400lbs when a 500lb-960lb would probably be optimal.
2013 Zero S
2007 Yamaha FZ6
2005 Ninja 250
1983 Honda CSR


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Re: Aftermarket shock - work in progress
« Reply #1 on: February 15, 2018, 01:50:37 AM »

Thank you for doing all this legwork and for posting it here!

No offense, but hopefully it will soon be for naught when Ohlins or Works Performance comes up with an aftermarket bolt-on for our bike.
2018 SR14.4 (in January 2018)
2015 BMW F800GT
2002 Kawasaki ZX9R
2000 Kawasaki W650 (2)

Doug S

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Re: Aftermarket shock - work in progress
« Reply #2 on: February 15, 2018, 03:20:45 AM »

This is actually a fairly common topic for discussion. My solution is posted at http://electricmotorcycleforum.com/boards/index.php?topic=6936.msg56800#msg56800
There's no better alarm clock than sunlight on asphalt.
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