Suzuki GSXR 600/750 Shock Install

Lemonfresh · August 19th, 2014, 07:15 PM

I did a lot of research before attempting this and thought I would let you know what I found along the way.

This shock will fit without interference issues in a 2010 Ninja 250. I can only assume it will fit the other years. The suspension has full travel both up and down.

It did require some modifications to the uni-trak pivot arm. I used a mill to shave enough material off each side to allow the GSXR shock to slide over it. I used a lathe to turn the spacer down enough to just fit in the shock also.

I ended up buying this hardware:

2x m12 1.75x130mm zinc plated bolts (To replace the dogbone bolts)
1x m12 1.75x55mm zinc plated bolt (To replace the shock/uni-trac bolt)
3x m12 1.75 top lock nuts
4x m12 flat washers
4x Bronze Bushings

I also drilled the stock GSXR bolt eye out with a drill press to accept the 12mm stock bolts.

I have not installed the under tail liner just yet. I will update on whether or not it needs to be trimmed. I'll post pics along with a ride report soon.

cuong-nutz · August 19th, 2014, 08:08 PM

Hi Mat! I'm not sure if you know but it's been done before. Not exactly to your perfectionalism but done

The shock will lower your rear a tad so new dog bones are in order. There's a company out there that makes them to correct it but I'm sure you can make your own. You will need to trim the rear fender liner where it curves for the stock shock.

Lemonfresh · August 19th, 2014, 08:59 PM

I scoured this and other sites for information on how to do this before I did it. I just never found what hardware was needed and saw conflicting information on whether or not the liner needed to be trimmed. Yes it does, the air box does not need to be trimmed.

tfkrocks · August 19th, 2014, 11:47 PM

Quote:

Originally Posted by Lemonfresh

I scoured this and other sites for information on how to do this before I did it. I just never found what hardware was needed and saw conflicting information on whether or not the liner needed to be trimmed. Yes it does, the air box does not need to be trimmed.

The GSXR Shock is 1/4" longer. Won't that make the bike sit a little higher?

Longer = lower

subxero · August 20th, 2014, 06:14 AM

Quote:

Originally Posted by Lemonfresh

I scoured this and other sites for information on how to do this before I did it. I just never found what hardware was needed and saw conflicting information on whether or not the liner needed to be trimmed. Yes it does, the air box does not need to be trimmed.

The GSXR Shock is 1/4" longer. Won't that make the bike sit a little higher?

The shock is shorter, it's been documented and verified 100 times, along with everything else that needs done, a simple google search will turn up tons of hits and more info regarding the mod than you will want to go through

https://www.google.com/?gws_rd=ssl#q...250+gsxr+shock

Quote:

Originally Posted by tfkrocks

Longer = lower

^ incorrect, longer = higher for the shock, it's the dog bones that work the other way. Shorter bones = higher, longer bones = lower.

tfkrocks · August 20th, 2014, 02:20 PM

Quote:

Originally Posted by subxero

^ incorrect, longer = higher for the shock, it's the dog bones that work the other way. Shorter bones = higher, longer bones = lower.

Oops yeah that's what I was thinking.

Lemonfresh · August 20th, 2014, 04:56 PM

Look I am not trying to re-invent the wheel here. I Google searched and read every article I could find before doing this. I am trying to answer questions I had while doing this project. I found many conflicting statements, which may have been caused between this project being done on the different generations of bikes. All I am trying to do is answer questions I had while doing this and help the next guy do it.

I just measured the uncompressed shocks and they are within 3mm of each other in eye to eye length. The '07 GSXR shock was at 317mm and the stocker is at 320mm. This is in contrast to the many articles I have read which showed the GSXR shock as small as 312mm to as large as 320mm and the stocker at 317mm. This small of a difference is hardly worth fabing new dogbones over.

subxero · August 20th, 2014, 05:37 PM

Quote:

Originally Posted by Lemonfresh

I scoured this and other sites for information on how to do this before I did it. I just never found what hardware was needed and saw conflicting information on whether or not the liner needed to be trimmed. Yes it does, the air box does not need to be trimmed.

The GSXR Shock is 1/4" longer. Won't that make the bike sit a little higher?

Quote:

Originally Posted by Lemonfresh

Look I am not trying to re-invent the wheel here. I Google searched and read every article I could find before doing this. I am trying to answer questions I had while doing this project. I found many conflicting statements, which may have been caused between this project being done on the different generations of bikes. All I am trying to do is answer questions I had while doing this and help the next guy do it.

I just measured the uncompressed shocks and they are within 3mm of each other in eye to eye length. The '07 GSXR shock was at 317mm and the stocker is at 320mm. This is in contrast to the many articles I have read which showed the GSXR shock as small as 312mm to as large as 320mm and the stocker at 317mm. This small of a difference is hardly worth fabing new dogbones over.

Conflicting statements huh? On the internet?..... never

Lemonfresh · August 20th, 2014, 05:58 PM

Quote:

Originally Posted by subxero

Conflicting statements huh? On the internet?..... never

Exactly. I fixed mine, will you do the same?

Lemonfresh · August 20th, 2014, 08:38 PM

I got it all back together today. Sag is set and I matched the rear compression and rebound as closely to the front as I could. It is a completely new animal. The handling is incredibly flickable and the rear feels much more planted when going through corners. I went looking for the biggest bumps I could find, it eats them up without issue. This shock along with new front springs and oil is a great upgrade.

Bigballsofpaint · August 21st, 2014, 08:42 AM

Quote:

Originally Posted by Lemonfresh

I got it all back together today. Sag is set and I matched the rear compression and rebound as closely to the front as I could. It is a completely new animal. The handling is incredibly flickable and the rear feels much more planted when going through corners. I went looking for the biggest bumps I could find, it eats them up without issue. This shock along with new front springs and oil is a great upgrade.

I did the exact same thing, plus pre load adjusters in front, no emulators though. I got shorter dog bons though and the rear raised an inch i would say, bike feels AWESOME. Only rode it around the track though, so i wasnt able to check how it was over bumps. Felt super solid and stable all the time.

To add real information though, i did the opposite of you for my install. I drills the GSXR shock holes out and ground the gsxr shock to fit over the arm of the 250. My reason was its prob easier and cheaper for me to replace the gsxr shock than anything on my ninja.

August 19th, 2014, 07:15 PM	#1
Lemonfresh ninjette.org member Name: Mat Location: Klamath Falls, OR Join Date: Apr 2014 Motorcycle(s): '10 Kawasaki Ninja 250ARRRR (Sold), '13 Kawasaki Ninja 300 (Crashed), '07 Triumph Daytona 675 Posts: 45	Suzuki GSXR 600/750 Shock Install on 2010 I did a lot of research before attempting this and thought I would let you know what I found along the way. This shock will fit without interference issues in a 2010 Ninja 250. I can only assume it will fit the other years. The suspension has full travel both up and down. It did require some modifications to the uni-trak pivot arm. I used a mill to shave enough material off each side to allow the GSXR shock to slide over it. I used a lathe to turn the spacer down enough to just fit in the shock also. I ended up buying this hardware: 2x m12 1.75x130mm zinc plated bolts (To replace the dogbone bolts) 1x m12 1.75x55mm zinc plated bolt (To replace the shock/uni-trac bolt) 3x m12 1.75 top lock nuts 4x m12 flat washers 4x Bronze Bushings I also drilled the stock GSXR bolt eye out with a drill press to accept the 12mm stock bolts. I have not installed the under tail liner just yet. I will update on whether or not it needs to be trimmed. I'll post pics along with a ride report soon. Last futzed with by Lemonfresh; August 20th, 2014 at 04:48 PM.

August 19th, 2014, 08:08 PM	#2
cuong-nutz RIP Alex Name: Cuong Location: Houston, TX Join Date: Apr 2011 Motorcycle(s): '10 250r, '09 265r Posts: A lot. Blog Entries: 2	Hi Mat! I'm not sure if you know but it's been done before. Not exactly to your perfectionalism but done The shock will lower your rear a tad so new dog bones are in order. There's a company out there that makes them to correct it but I'm sure you can make your own. You will need to trim the rear fender liner where it curves for the stock shock. __________________________________________________ HalfFast Racing Team Serving Greater Houston Area Riders:WFO Riders MotoHouston HPC CMRA Ride Smart Fastline Lone Star Track Days

August 19th, 2014, 08:59 PM	#3
Lemonfresh ninjette.org member Name: Mat Location: Klamath Falls, OR Join Date: Apr 2014 Motorcycle(s): '10 Kawasaki Ninja 250ARRRR (Sold), '13 Kawasaki Ninja 300 (Crashed), '07 Triumph Daytona 675 Posts: 45	I scoured this and other sites for information on how to do this before I did it. I just never found what hardware was needed and saw conflicting information on whether or not the liner needed to be trimmed. Yes it does, the air box does not need to be trimmed. Last futzed with by Lemonfresh; August 20th, 2014 at 05:57 PM.

August 20th, 2014, 04:56 PM	#7
Lemonfresh ninjette.org member Name: Mat Location: Klamath Falls, OR Join Date: Apr 2014 Motorcycle(s): '10 Kawasaki Ninja 250ARRRR (Sold), '13 Kawasaki Ninja 300 (Crashed), '07 Triumph Daytona 675 Posts: 45	Look I am not trying to re-invent the wheel here. I Google searched and read every article I could find before doing this. I am trying to answer questions I had while doing this project. I found many conflicting statements, which may have been caused between this project being done on the different generations of bikes. All I am trying to do is answer questions I had while doing this and help the next guy do it. I just measured the uncompressed shocks and they are within 3mm of each other in eye to eye length. The '07 GSXR shock was at 317mm and the stocker is at 320mm. This is in contrast to the many articles I have read which showed the GSXR shock as small as 312mm to as large as 320mm and the stocker at 317mm. This small of a difference is hardly worth fabing new dogbones over.

August 20th, 2014, 08:38 PM	#10
Lemonfresh ninjette.org member Name: Mat Location: Klamath Falls, OR Join Date: Apr 2014 Motorcycle(s): '10 Kawasaki Ninja 250ARRRR (Sold), '13 Kawasaki Ninja 300 (Crashed), '07 Triumph Daytona 675 Posts: 45	I got it all back together today. Sag is set and I matched the rear compression and rebound as closely to the front as I could. It is a completely new animal. The handling is incredibly flickable and the rear feels much more planted when going through corners. I went looking for the biggest bumps I could find, it eats them up without issue. This shock along with new front springs and oil is a great upgrade.