rear shock question

ReDnEcK · September 3rd, 2010, 04:18 PM

is this rear shock from a pregen or a newgen???

Cuongism · September 3rd, 2010, 04:23 PM

There's a preload so new gen. I've never looked at a pregen, but they shouldn't have that preload.

Alex · September 3rd, 2010, 04:25 PM

New-gen. Pre-gen's aren't preload adjustable (that ramp at the bottom with 5 different settings).

EDIT: Yup, what he said.

2WheelGuy · September 3rd, 2010, 04:45 PM

Actually, First-gens had adjustable preload too. The First-gens had a threaded adjuster rather than the ramp adjuster of the New-gen.

So to answer the question that appears to be a New-gen shock.

Alex · September 3rd, 2010, 04:54 PM

Learn something new every day! I could have sworn the pre-gens weren't adjustable front or rear, and heck, we even owned one. I didn't realize it was just the locking collar type, I guess I never played with it...

kkim · September 3rd, 2010, 05:41 PM

Quote:

Originally Posted by 2WheelGuy

Actually, First-gens had adjustable preload too. The First-gens had a threaded adjuster rather than the ramp adjuster of the New-gen.

So to answer the question that appears to be a New-gen shock.

define "first gens"

2WheelGuy · September 3rd, 2010, 05:50 PM

Quote:

Originally Posted by kkim

define "first gens"

1986-1987 models

kkim · September 3rd, 2010, 05:55 PM

yup, but not all year of pregens.

I didn't know about the threaded collar on those years. does it make a difference or does it just make a crappy shock, crappier?

if better, is it perfect fit for later year pregens?

2WheelGuy · September 3rd, 2010, 05:59 PM

The First-gen shock is a drop in replacement for the Pre-gen. As far as I can tell it is the exact same unit with a preload adjuster.

kkim · September 3rd, 2010, 06:08 PM

Quote:

Originally Posted by 2WheelGuy

The First-gen shock is a drop in replacement for the Pre-gen. As far as I can tell it is the exact same unit with a preload adjuster.

Thanks for that info.

lol... even back then they would decontent the bikes from year to year.

2WheelGuy · September 4th, 2010, 03:54 PM

All types of OEM 250 shock that I know of: L: 1986-87 M: 1988-2007 R: 2008+

I just happened to have them all in a pile so I took a photo.

kkim · September 4th, 2010, 04:11 PM

Thanks for the pic.

That will come in very handy in the future when people ask about shocks.

I've never seen the shocks laid out like that from the different gens.

Snake · September 4th, 2010, 04:53 PM

The 08+ shock body looks to be a bit shorter but larger in diameter and the spring looks to be a bit shorter but I'm not sure if it is due to the position of the preload adjuster.

Craig, just comparing the 1988 thru 2007 and the 2008+ shocks. Do you know how they compare as far as spring rate and rebound dampening (term?) ? Also, on your pregen racing bikes have you kept the pregen shock or swapped it out for the 08+ shock? I am trying to get a racer's opinion on which shock is better my my pregen both for racing and for street riding.

Thanks in advance for your input Craig.

HKr1 · September 8th, 2010, 05:43 AM

Quote:

Originally Posted by 2WheelGuy

All types of OEM 250 shock that I know of: L: 1986-87 M: 1988-2007 R: 2008+

I just happened to have them all in a pile so I took a photo.

Nice!

September 3rd, 2010, 04:18 PM	#1
ReDnEcK ninjette.org member Name: JeFFy Location: Ventura, CA Join Date: Jul 2010 Motorcycle(s): 2005 Kawasaki Ninja 250R Posts: 66	rear shock question is this rear shock from a pregen or a newgen??? __________________________________________________ Have Fun, Ride Safe But Remember... Loser Buys Lunch, So Bring Your Wallet!

September 3rd, 2010, 04:25 PM	#3
Alex ninjette.org dude Name: 1 guess :-) Location: SF Bay Area Join Date: Jun 2008 Motorcycle(s): '13 Ninja 300 (white, the fastest color!), '13 R1200RT, '14 CRF250L, '12 TT-R125LE Posts: Too much. Blog Entries: 7	New-gen. Pre-gen's aren't preload adjustable (that ramp at the bottom with 5 different settings). EDIT: Yup, what he said. __________________________________________________ Montgomery Street Motorcycle Club / cal24.com / crf250l.org / ninjette.org ninjette.org Terms of Service Shopping for motorcycle parts or equipment? Come here first. The friendliest Ninja 250R/300/400 forum on the internet! (especially Unregistered)

September 3rd, 2010, 04:45 PM	#4
2WheelGuy ninjette.org certified postwhore Name: Craig Location: Silicon Valley, CA USA Join Date: May 2009 Motorcycle(s): '98 EX250, '02 EX250, '08 250r, '03 SV650, '98 GSXR750 '03 Hayabusa, '87 YSR50, '84 ZX900, +MORE Posts: A lot.	Actually, First-gens had adjustable preload too. The First-gens had a threaded adjuster rather than the ramp adjuster of the New-gen. So to answer the question that appears to be a New-gen shock. __________________________________________________ CraigHarris.org Pacific Track Time CraigsWeb See you at 2014 MotoGP Laguna Seca! We'll be camping on Fox Hill. AFM #278

September 3rd, 2010, 04:54 PM	#5
Alex ninjette.org dude Name: 1 guess :-) Location: SF Bay Area Join Date: Jun 2008 Motorcycle(s): '13 Ninja 300 (white, the fastest color!), '13 R1200RT, '14 CRF250L, '12 TT-R125LE Posts: Too much. Blog Entries: 7	Learn something new every day! I could have sworn the pre-gens weren't adjustable front or rear, and heck, we even owned one. I didn't realize it was just the locking collar type, I guess I never played with it... __________________________________________________ Montgomery Street Motorcycle Club / cal24.com / crf250l.org / ninjette.org ninjette.org Terms of Service Shopping for motorcycle parts or equipment? Come here first. The friendliest Ninja 250R/300/400 forum on the internet! (especially Unregistered)

September 3rd, 2010, 05:59 PM	#9
2WheelGuy ninjette.org certified postwhore Name: Craig Location: Silicon Valley, CA USA Join Date: May 2009 Motorcycle(s): '98 EX250, '02 EX250, '08 250r, '03 SV650, '98 GSXR750 '03 Hayabusa, '87 YSR50, '84 ZX900, +MORE Posts: A lot.	The First-gen shock is a drop in replacement for the Pre-gen. As far as I can tell it is the exact same unit with a preload adjuster. __________________________________________________ CraigHarris.org Pacific Track Time CraigsWeb See you at 2014 MotoGP Laguna Seca! We'll be camping on Fox Hill. AFM #278

September 3rd, 2010, 04:23 PM	#2
Cuongism ninjette.org certified postwhore Name: Cuong Location: San Diego Join Date: Jul 2010 Motorcycle(s): 2008 Ninja 250r, 2007 Daytona 675 Posts: A lot.	There's a preload so new gen. I've never looked at a pregen, but they shouldn't have that preload.

September 3rd, 2010, 05:55 PM	#8
kkim Join Date: Nov 2008 Posts: Too much.	yup, but not all year of pregens. I didn't know about the threaded collar on those years. does it make a difference or does it just make a crappy shock, crappier? if better, is it perfect fit for later year pregens?

September 4th, 2010, 03:54 PM	#11
2WheelGuy ninjette.org certified postwhore Name: Craig Location: Silicon Valley, CA USA Join Date: May 2009 Motorcycle(s): '98 EX250, '02 EX250, '08 250r, '03 SV650, '98 GSXR750 '03 Hayabusa, '87 YSR50, '84 ZX900, +MORE Posts: A lot.	All types of OEM 250 shock that I know of: L: 1986-87 M: 1988-2007 R: 2008+ I just happened to have them all in a pile so I took a photo. __________________________________________________ CraigHarris.org Pacific Track Time CraigsWeb See you at 2014 MotoGP Laguna Seca! We'll be camping on Fox Hill. AFM #278

September 4th, 2010, 04:11 PM	#12
kkim Join Date: Nov 2008 Posts: Too much.	Thanks for the pic. That will come in very handy in the future when people ask about shocks. I've never seen the shocks laid out like that from the different gens.

September 4th, 2010, 04:53 PM	#13
Snake ninjette.org certified postwhore Name: Rick Location: Alexandria, Louisiana Join Date: Jan 2009 Motorcycle(s): 05 Blue Ninja 250 Posts: Too much. MOTY - 2017, MOTM - Jan '19, Oct '16, May '14	The 08+ shock body looks to be a bit shorter but larger in diameter and the spring looks to be a bit shorter but I'm not sure if it is due to the position of the preload adjuster. Craig, just comparing the 1988 thru 2007 and the 2008+ shocks. Do you know how they compare as far as spring rate and rebound dampening (term?) ? Also, on your pregen racing bikes have you kept the pregen shock or swapped it out for the 08+ shock? I am trying to get a racer's opinion on which shock is better my my pregen both for racing and for street riding. Thanks in advance for your input Craig.

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