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Shock absorber replacement.

 
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Irishrover
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Joined: 10 Jul 2009
Posts: 155
Location: Scotland, U.K.
PGO G-Max 125

PostPosted: Tue Sep 15, 2009 12:35 pm    Post subject: Shock absorber replacement. Reply with quote

Any suggestions for a replacement shock as mine feels quite rigid over bumps?
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babblefish
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Location: San Francisco
2006 Blur 180, 2008 Buddy St. Tropez

PostPosted: Wed Sep 16, 2009 4:39 am    Post subject: Reply with quote

I've been looking for one myself, but our Blurs'/GMaxs' have a somewhat unusual rear shock in that it has an "eye" on both ends while most scooters have an "eye" on one end and a "U" on the other. I was thinking about removing my shock to make some notes on various dimensions like length from "eye" to "eye", mounting hole diameter, etc. and sending an email to one of the more popular eBay vendors that sell scooter parts to see if he can match it to a performance shock. I'd like to get one with some adjustability in preload, dampening and with a more progressive spring.
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KS Power Nick
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Joined: 08 Apr 2009
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Location: Des Moines, IA
JCL Drag Scooter, Honda Ruckus

PostPosted: Wed Sep 16, 2009 2:40 pm    Post subject: Reply with quote

babblefish wrote:
I've been looking for one myself, but our Blurs'/GMaxs' have a somewhat unusual rear shock in that it has an "eye" on both ends while most scooters have an "eye" on one end and a "U" on the other. I was thinking about removing my shock to make some notes on various dimensions like length from "eye" to "eye", mounting hole diameter, etc. and sending an email to one of the more popular eBay vendors that sell scooter parts to see if he can match it to a performance shock. I'd like to get one with some adjustability in preload, dampening and with a more progressive spring.


If you could get the eye-to-eye measurement I can check around for good shocks. There are alot of dirt bike shocks that are that style that come in lots of different grades also. Just need to know that measurement.
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babblefish
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2006 Blur 180, 2008 Buddy St. Tropez

PostPosted: Wed Sep 16, 2009 9:36 pm    Post subject: Reply with quote

Thanks Nick, I'll get those measurements as soon as I can. Very Happy
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illnoise
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Blur 150, various vintage Vespas

PostPosted: Thu Sep 17, 2009 12:58 pm    Post subject: Reply with quote

The new 220 (the proposed US version anyway) has an improved spring... Seemed a bit cushier. I'm not sure if it's a direct replacement, or available, or if it's stock on the Taiwanese 220s, but it might be worth tracking down.
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babblefish
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2006 Blur 180, 2008 Buddy St. Tropez

PostPosted: Thu Sep 17, 2009 8:27 pm    Post subject: Reply with quote

Illnoise - thanks for letting us know about this. It might be an option, but I'm kinda wondering, might the heavier weight of the 220i make the suspension feel cushier?
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Lostmycage
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PostPosted: Fri Sep 18, 2009 1:22 am    Post subject: Reply with quote

Has anyone heard how much heavier it's going to be? In my head, it should be about the same weight, right? The engine would be heavier, but that's not a lot more metal to bump the cc's by 70... The frame should be the same size, at least in my head.

The G-Max 250 has a dual shock rear suspension, but I think a lot of that is because it uses a Kymco based engine, so it's just got the mount points for it so they thought "why not?" That's what I always figured anyway.

A stiffer sping would go a good ways toward making 2-up more comfortable.

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babblefish
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PostPosted: Fri Sep 18, 2009 1:45 am    Post subject: Reply with quote

Well, they may have beefed-up the crankcase and crankshaft to support the increased displacement plus all of the fuel injection hardware may add some weight too.
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illnoise
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PostPosted: Fri Sep 18, 2009 3:43 pm    Post subject: Reply with quote

Any added weight would be unsprung, right? The body's all the same. That would affect center of gravity and handling to some degree, but wouldn't really affect the the suspension feel much, I wouldn't think.

Bb,

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Lostmycage
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PostPosted: Fri Sep 18, 2009 3:58 pm    Post subject: Reply with quote

Yep, most the added weight would be unsprung. The fuel injection equipment, by replacing the carb and vacuum controls would for the most part be added to the engine.

Theoretically, if the frame is the same (with the exception of a few mounting points added or taken off for the revised fuel delivery system) then the suspension should be the same as well. So if it's got a better (beefier/adjustable) rear suspension, or forks for that matter, then it should be a direct swap upgrade. Pretty neat... but given the cost of OEM parts, probably pretty pricey. Then there's the whole topic of "will Genuine import an extra supply of these in addition to those they'll bring in for expected failure rates/warranty claims/accident repairs?"

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illnoise
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PostPosted: Fri Sep 18, 2009 4:27 pm    Post subject: Reply with quote

Lostmycage wrote:
Then there's the whole topic of "will Genuine import an extra supply of these in addition to those they'll bring in for expected failure rates/warranty claims/accident repairs?"


Exactly. I've been nagging them to bring in the speedos, too. If they bring in the new Blur, I think it'll force them to target the legacy market, too, there's a LOT of stuff they could be bringing in.

But note, the OP is in the UK, so his plight doesn't really have anything to do with Genuine. If the UK importer is bringing in the 220, they may have spares on hand, or could order them.

Bb.

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Lostmycage
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PostPosted: Fri Sep 18, 2009 6:09 pm    Post subject: Reply with quote

Right on that.

One thing he could do is once the compatibility of the 150 and 220 shocks are confirmed (or denied) is contact someone in Taiwan who lives across the street from PGO (Autotech) with the PGO part number. He's checked on one or two things for me in the past and been pretty reliable in my purchases through him.

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nancy
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PostPosted: Fri Sep 18, 2009 10:27 pm    Post subject: Reply with quote

You might be able to find one at www.scooterloungeonline.com/blurparts
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jfrost2
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Joined: 17 Feb 2008
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Location: Somewhere in Ohio, Maybe.
First Ever Sold Orange 08' Buddy 125

PostPosted: Fri Sep 18, 2009 11:09 pm    Post subject: Reply with quote

http://www.scooterloungeonline.com/blurfrontfork

$235 for the entire front fork assembly

Almost the same price for what aftermarket shocks would cost for other bikes.
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Lostmycage
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PostPosted: Sat Sep 19, 2009 4:19 am    Post subject: Reply with quote

I thought we were talking about the rear shock, lol. Now that it's brought up though, has anyone ever considered opening the forks to see how long the springs are? I'm sure with a little tinkering, we could figure out if maybe a little heavier weight fork oil or maybe even source out some different springs and maybe come up with a wicked tight front to go with out not-real-yet rear suspension upgrade.
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Irishrover
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Location: Scotland, U.K.
PGO G-Max 125

PostPosted: Sat Sep 19, 2009 6:47 pm    Post subject: Reply with quote

Eye to eye 250mm according to my measurements today.


KS Power Nick wrote:
babblefish wrote:
I've been looking for one myself, but our Blurs'/GMaxs' have a somewhat unusual rear shock in that it has an "eye" on both ends while most scooters have an "eye" on one end and a "U" on the other. I was thinking about removing my shock to make some notes on various dimensions like length from "eye" to "eye", mounting hole diameter, etc. and sending an email to one of the more popular eBay vendors that sell scooter parts to see if he can match it to a performance shock. I'd like to get one with some adjustability in preload, dampening and with a more progressive spring.


If you could get the eye-to-eye measurement I can check around for good shocks. There are alot of dirt bike shocks that are that style that come in lots of different grades also. Just need to know that measurement.

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babblefish
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PostPosted: Tue Oct 13, 2009 9:44 am    Post subject: Reply with quote

Irishrover wrote:
Eye to eye 250mm according to my measurements today.



Is that measurement with the shock installed in the scooter or removed and fully extended? Thx.

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Irishrover
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PGO G-Max 125

PostPosted: Tue Oct 13, 2009 6:31 pm    Post subject: Reply with quote

Installed.


babblefish wrote:
Irishrover wrote:
Eye to eye 250mm according to my measurements today.



Is that measurement with the shock installed in the scooter or removed and fully extended? Thx.

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babblefish
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PostPosted: Tue Oct 13, 2009 6:34 pm    Post subject: Reply with quote

Thanks. Unfortunately, the length of shocks are given while fully extended. I'll have to remove mine at some time to measure it. Sad
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beeboytroy
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Joined: 13 Dec 2008
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Location: Tucson
Blur 150, Stella 150, Kymco People 250

PostPosted: Thu Oct 22, 2009 8:48 pm    Post subject: Reply with quote

I found this while doing some ebay browsing:

http://cgi.ebay.com/ebaymotors/Honda-Dio-SYM-PGO-Yamaha-RRGS-rear-shock-suspension_W0QQitemZ280401798698QQcmdZViewItemQQptZMotorcycles_Parts_Accessories?hash=item41493fe62a
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Irishrover
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Location: Scotland, U.K.
PGO G-Max 125

PostPosted: Thu Oct 22, 2009 10:19 pm    Post subject: Reply with quote

beeboytroy wrote:
I found this while doing some ebay browsing:

http://cgi.ebay.com/ebaymotors/Honda-Dio-SYM-PGO-Yamaha-RRGS-rear-shock-suspension_W0QQitemZ280401798698QQcmdZViewItemQQptZMotorcycles_Parts_Accessories?hash=item41493fe62a



Good find, I must enquire.

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babblefish
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PostPosted: Sat Oct 24, 2009 1:45 am    Post subject: Reply with quote

Unfortunately, it won't work without modification because the bottom end has a "fork" rather than an "eye".
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ScootCorps
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Location: Lockport, IL
2012 Blur 220 [StormTrooper]

PostPosted: Tue Jun 04, 2013 4:56 pm    Post subject: Reply with quote

I believe we are looking for an eye-to-eye rear shock measuring 260mm unloaded.
I have NOT verified this on my personal bike but this seems reliable:
http://www.ebay.com/itm/shock-absorber-pgo-g-max-2009-3955-/130826114034?_trksid=p4069.m2059&_trkparms=aid%3D111000%26algo%3DREC.CURRENT%26ao%3D1%26asc%3D27%26meid%3D8142920871510054005%26pid%3D100039%26prg%3D1011%26rk%3D2%26sd%3D181152373708%26
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ScootCorps
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Location: Lockport, IL
2012 Blur 220 [StormTrooper]

PostPosted: Tue Aug 20, 2013 7:15 pm    Post subject: rear shock measurements Reply with quote

just a heads-up for everyone on this thread.
I am researching a few suspension companies to start providing some select parts for the Gmax/Blur 220 specifically but also some that will work for the 150.
until then, here are the measurements for you impatient types.
length=10"(254mm) eye-to-eye
body thickness=63mm
Wire (Coil) thickness= 9mm
non-progressive spring rate
Non-adjustable mono type
for the record, OEM replacement (M24810001002) MSRP=$250.00

Knowing all this, how much would you feel is a fair price you would be willing to spend for an adjustable mono shock. what properties would you like it to have?
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