| View previous topic :: View next topic |
| Author |
Message |
mogeewogee
Joined: 03 May 2008
Posts: 19
Location: New Hampshire USA
|
 Posted: Tue Jun 03, 2008 1:42 am Post subject: Overload springs ??? sp4y? |
 |
|
I know that most people say that the heavy rear springs are similar to having a "hardtail".... but I am a big guy 390#
I have the stock shocks on the 3rd setting and they are good but I was wondering about a good upgrade.
I also read about putting a 130 tyre on front and a 140 on rear any feedback?
I love my   clashmobile GTS   |
|
| Back to top |
|
 |
CheekyThomas
Guvernor
Joined: 18 May 2007
Posts: 1374
|
| Posted: Tue Jun 03, 2008 8:55 am Post subject: |
|
|
Dont even get me started on fitting silly hard springs to the standard shocks  Bad move
Theyve become popular as the std ones are quite soft and as a CHEAP bodge way round aftermarket exhaust/bodywork issues... they kill the handling of the machine.
Firstly the springs strength is so high that the force needed to move them is greater than the shocks compression dampening abilty so you get no controlled downward motion...
Then the springs rebound energy is so high the shock doesnt have the guts to slow it down so you end up with no controlled upward motion...
So with the above 2 functions of the shock absorber being killed completely theres no need for it to be fitted. Fit a leaked out dead shock to one and see, makes no difference at all, still acts the same...
If you found a matched set of heavy duty dampers so they wasnt so dramatically overpowered by the springs it would be another whole different story though.
If possible, always buy matched shock/spring combinations. |
|
| Back to top |
|
|
monty9120
Guvernor
Joined: 15 Nov 2007
Posts: 861
Location: North London
|
| Posted: Tue Jun 03, 2008 11:53 am Post subject: |
|
|
dont say that mav will be most upset
_________________
GILERA NEXUS 500
DANGER HIGH VOLTAGE!!!!!
NORWICH BROADSMEN SC |
|
| Back to top |
|
|
CheekyThomas
Guvernor
Joined: 18 May 2007
Posts: 1374
|
| Posted: Tue Jun 03, 2008 12:27 pm Post subject: |
|
|
I did look at his and just think to myself...
Stops his exhaust hitting and thats why he has them, and if a cheap set of something decent comes up he might be tempted to get proper handling back one day... well at least i hope. |
|
| Back to top |
|
|
Maver
Site Admin
Joined: 14 May 2007
Posts: 2193
Location: naaaaaarfolk we drive tractors and talk loike PIRATES
|
| Posted: Tue Jun 03, 2008 5:20 pm Post subject: |
|
|
the standard spring and shock set up is like a jelly
.................i don't think mine handles too badly for a shopping bike
_________________
 |
|
| Back to top |
|
|
Gwilym
Inspector
Joined: 04 Oct 2007
Posts: 139
Location: Tadley,Hants.
|
| Posted: Tue Jun 03, 2008 10:30 pm Post subject: |
|
|
| Maver wrote: |
the standard spring and shock set up is like a jelly
.................i don't think mine handles too badly for a shopping bike |
Have to agree. Mind you i used to own a Lambretta so............  |
|
| Back to top |
|
|
Road Rage
Joined: 28 May 2008
Posts: 17
Location: Maidstone, Kent
|
| Posted: Wed Jun 04, 2008 8:04 am Post subject: |
|
|
Im sure I have seen this question asked before but I dont remember a reply,has anyone got the Bitubo rear shocks and are they any good. 
_________________
Live Slow Die young !
Darkside |
|
| Back to top |
|
|
CheekyThomas
Guvernor
Joined: 18 May 2007
Posts: 1374
|
| Posted: Wed Jun 04, 2008 8:50 am Post subject: |
|
|
| Maver wrote: |
the standard spring and shock set up is like a jelly
.................i don't think mine handles too badly for a shopping bike |
Soft maybe.... but matched
Yours is massively over sprung and under dampened.... do a track day on it and check ya tyre afterwards, it would look like a 50p coin as the tyres doing the suspensions work... but for a shopping bike i guess it dont matter |
|
| Back to top |
|
|
harrysgame
Inspector
Joined: 10 Apr 2008
Posts: 118
Location: Northampton
|
| Posted: Wed Jun 04, 2008 10:46 am Post subject: |
|
|
| My brother has Bitubo springs, i have standard. I have ridden both and to be honest can't tell any difference. The Bitubo's just look nicer and will be harder wearing. |
|
| Back to top |
|
|
smirnoff
Site Admin
Joined: 14 May 2007
Posts: 1125
Location: On the bouncy castle in my head.
|
| Posted: Wed Jun 04, 2008 12:45 pm Post subject: |
|
|
I think Budweiser has SP4U springs on, as have I, and I think my scoot handles very well. But then mine has a bigger load to carry than everyone else
_________________
PHIL.... |
|
| Back to top |
|
|
CheekyThomas
Guvernor
Joined: 18 May 2007
Posts: 1374
|
| Posted: Wed Jun 04, 2008 3:47 pm Post subject: |
|
|
| smirnoff wrote: | | and I think my scoot handles very well. |
Ive highlighted the important bit in the sentence there
The standard shocks are very soft, and so are the springs.... if only the springs were soft you would be able to push the suspension down easy but it would be slow to return as the damper would overpower the springs effort to try and regain its length... but it doesnt as the 2 are "matched" so they act together and provide a smooth operation...
... now when you jab a heavy old spring on there with the same soft shock, IF you get the suspension to compress, when it rebounds the spring has more strength trying to regain its normal shape than the shock can dampen out and the spring just plain overpowers it.
You dont realise how much difference suspension set up makes until you start pushing things harder, when setting up the race bikes it amazed me how a slight adjustment can turn good into tyre shreddingly bad, its such a fine line...
As the GTS shocks are nothing special, just simple one piece units with standard ends, has anyone looked into normal replacements that are just stronger and better quality without all the fancy names, shiny bits and twiddly knobs?? |
|
| Back to top |
|
|
Maver
Site Admin
Joined: 14 May 2007
Posts: 2193
Location: naaaaaarfolk we drive tractors and talk loike PIRATES
|
| Posted: Wed Jun 04, 2008 9:37 pm Post subject: |
|
|
| CheekyThomas wrote: | | .......................... has anyone looked into normal replacements that are just stronger and better quality without all the fancy names, shiny bits and twiddly knobs?? |
you find 'em i'll buy them 
_________________
|
|
| Back to top |
|
|
buddyphil
Site Admin
Joined: 14 May 2007
Posts: 265
Location: page 34 febuary edition of scootering magazine
|
| Posted: Wed Jun 04, 2008 9:57 pm Post subject: |
|
|
yea the bud had the springs on front and back
was more worried about the pm downpipe being ripped off
when two up
than anything else |
|
| Back to top |
|
|
harrysgame
Inspector
Joined: 10 Apr 2008
Posts: 118
Location: Northampton
|
| Posted: Wed Jun 04, 2008 10:07 pm Post subject: |
|
|
Oh right.
I still cannot tell any difference in handling. But i will say both machines handle brilliantly, although i am used to riding PX200s and Lambretta's. |
|
| Back to top |
|
|
smirnoff
Site Admin
Joined: 14 May 2007
Posts: 1125
Location: On the bouncy castle in my head.
|
| Posted: Thu Jun 05, 2008 11:43 am Post subject: |
|
|
| CheekyThomas wrote: | | smirnoff wrote: | | and I think my scoot handles very well. |
Ive highlighted the important bit in the sentence there
The standard shocks are very soft, and so are the springs.... if only the springs were soft you would be able to push the suspension down easy but it would be slow to return as the damper would overpower the springs effort to try and regain its length... but it doesnt as the 2 are "matched" so they act together and provide a smooth operation...
... now when you jab a heavy old spring on there with the same soft shock, IF you get the suspension to compress, when it rebounds the spring has more strength trying to regain its normal shape than the shock can dampen out and the spring just plain overpowers it.
You dont realise how much difference suspension set up makes until you start pushing things harder, when setting up the race bikes it amazed me how a slight adjustment can turn good into tyre shreddingly bad, its such a fine line...
As the GTS shocks are nothing special, just simple one piece units with standard ends, has anyone looked into normal replacements that are just stronger and better quality without all the fancy names, shiny bits and twiddly knobs?? |
Well fook me....sorry for having an opinion, novice rider that I am.
_________________
PHIL.... |
|
| Back to top |
|
|
|
FAQ
Search
Memberlist
Usergroups
Register
Profile
Log in to check your private messages
Log in
