Swingarm change

[ulysses_sc]

wow what big and colourful fonts you have..

 

ok so care to share with us here, whats the worst thing u ever read/heard/seen/experienced that happen to a bike beause of a changed/modded swingarm?

 

Dude... the point is that there will be serious handling issues if a major chassis modification is done haphazardly. You can obviously still ride an ill handling bike (e.g. most cruisers do not handle that well...), just that you may have just drastically reduced the initial capability of the bike by a major margin.

 

Even the slightest change in shock mounting point can and will affect ride height, coupling force generated by the linkage, which in turn affects how the rear suspension behaves. If the donor swingarm is longer, you will end up with a slower turning bike. If shorter, the bike will become twitchy.

 

Is the mechanic considering all these implications? I seriously doubt so, considering the bike culture and technical expertise available here.

[stoner]

Dude... the point is that there will be serious handling issues if a major chassis modification is done haphazardly. You can obviously still ride an ill handling bike (e.g. most cruisers do not handle that well...), just that you may have just drastically reduced the initial capability of the bike by a major margin.

 

Even the slightest change in shock mounting point can and will affect ride height, coupling force generated by the linkage, which in turn affects how the rear suspension behaves. If the donor swingarm is longer, you will end up with a slower turning bike. If shorter, the bike will become twitchy.

 

Is the mechanic considering all these implications? I seriously doubt so, considering the bike culture and technical expertise available here.

 

Well Said!

 

Right on the DIME!

[KeraKing]

Playing...Ching...to a Cow...

 

doesn't sound too dangerous, does it?

[KeraKing]

Dude... the point is that there will be serious handling issues if a major chassis modification is done haphazardly. You can obviously still ride an ill handling bike (e.g. most cruisers do not handle that well...), just that you may have just drastically reduced the initial capability of the bike by a major margin.

 

Even the slightest change in shock mounting point can and will affect ride height, coupling force generated by the linkage, which in turn affects how the rear suspension behaves. If the donor swingarm is longer, you will end up with a slower turning bike. If shorter, the bike will become twitchy.

 

Is the mechanic considering all these implications? I seriously doubt so, considering the bike culture and technical expertise available here.

 

sorry bro u a mechanic?

if so wat makes u think that only u can know about the above,

that other cannot/dun haf the slightest idea about the changes associated with it?

 

especially those mechs who have actually done it.

on others bikes as well as on their own.

and tested it on roads as well as on track.

 

i'm certain the mechs will take into consideraton more things than what we have discussed

 

if u have done such mods, do share with us so we can learn from it

maybe can improvise upon it and not repeat the same mistake

[Lexanez]

doesn't sound too dangerous, does it?

 

Please, go ahead. I'd like to see you try.

 

Accidents are serious and the chances of it occurring rises exponentially with the amount of improper modifications due to insufficient understanding and knowledge that leads to the degeneration of the capabilities of a motorcycle.

 

Lives are being endangered here, somehow people of Sillypore are willing to risk their lives (and others!) to reach a certain destination just a minute earlier. Don't add to that number.

 

Remember, any vehicle that has been sold on the market have been extensively tested and most are able to pass the QC before even launch. Hence it is reasonable to assume that stock parts are most compatible with the bike, though aftermarket parts, if they belongs to well-known or reputable companies are able to provide an increased in performance by swapping out certain parts.

 

Similarly, without a sufficient amount of knowledge and technical expertise, any modifications would be dangerous, even if the eventual results turn out well. It's not reputable, nor is it of quality manufacturing. Other effects of Accidents, insurance and everything have been discussed above.

 

However, if you feel it is worth the time and effort as well as money to do so, please go ahead and do it. After all, you are entitled to your own opinion. Though, you need to prepared for any consequences that might follow.

 

Given this, an example would be in order: Would you feed milk products from China to your child or would you go for Enfagrow and likes?

[Jehuty]

Please, go ahead. I'd like to see you try.

 

Accidents are serious and the chances of it occurring rises exponentially with the amount of improper modifications due to insufficient understanding and knowledge that leads to the degeneration of the capabilities of a motorcycle.

 

Lives are being endangered here, somehow people of Sillypore are willing to risk their lives (and others!) to reach a certain destination just a minute earlier. Don't add to that number.

 

Remember, any vehicle that has been sold on the market have been extensively tested and most are able to pass the QC before even launch. Hence it is reasonable to assume that stock parts are most compatible with the bike, though aftermarket parts, if they belongs to well-known or reputable companies are able to provide an increased in performance by swapping out certain parts.

 

Similarly, without a sufficient amount of knowledge and technical expertise, any modifications would be dangerous, even if the eventual results turn out well. It's not reputable, nor is it of quality manufacturing. Other effects of Accidents, insurance and everything have been discussed above.

 

However, if you feel it is worth the time and effort as well as money to do so, please go ahead and do it. After all, you are entitled to your own opinion. Though, you need to prepared for any consequences that might follow.

 

Given this, an example would be in order: Would you feed milk products from China to your child or would you go for Enfagrow and likes?

 

 

See how Singaporeans are easy to be kept in line? New, unorthodox, different is dangerous, lets wait for others to try first. Across the causeway is enough, they do extreme internal and extreme external, most extreme I've seen in SG is a phantom with KR fairing.

[ulysses_sc]

sorry bro u a mechanic?

if so wat makes u think that only u can know about the above,

that other cannot/dun haf the slightest idea about the changes associated with it?

 

especially those mechs who have actually done it.

on others bikes as well as on their own.

and tested it on roads as well as on track.

 

i'm certain the mechs will take into consideraton more things than what we have discussed

 

if u have done such mods, do share with us so we can learn from it

maybe can improvise upon it and not repeat the same mistake

Am just another armchair mechanic hiding behind a keyboard.

 

I just happened to have transplanted the entire front end of my XR, swapped the swingarm, played around with different forks and shocks, different linkages, different wheels, different brakes, different carb. Nothing much at all.

 

Lessons learned - pains outweighs the gains substantially. Stock works best 90% of the time.

[ben1112]

Mechanic is at the bottom of the knowledge pyramid with regards to the entire design, structure and build of the motorcycle. It takes people specialised in different fields to build a bike. Can a mechanic possibly understand the more profound concepts of metallurgy? aerodynamics? These are the responsibility of engineers and designers and many people who are good in one aspect to combine to a finished product. A mechanic only knows enough of everything to keep your bike running.

 

Asking a mechanic to trial&error yr swingarm is like asking a clinic assistant to trial&error yr prescription. Some thing can anyhow eat, some cant. Bike some thing can anyhow mod, some, better dun.

 

If you really need to mess with the swingarm, those top brand aftermarket companies with R&D that can make extended swingarm for big bikes like busa are more dependable.

 

 

 

If you are not racing for the podium in yr career, probably its not worth it.

[stoner]

Agree...

 

That's why I have mentioned....

 

You trail.... & You feel the "Error"!

[ben1112]

Well, not just making air with my mouth, I had a swapped front fork stem break in two. Luckily I wasnt going anywhere fast and swore to myself never to do anything like that again.

 

BTW it was a very light c70 swapped out for a wave fork.

[ben1112]

Well, not just making air with my mouth, I had a swapped front fork stem break in two. Luckily I wasnt going anywhere fast and swore to myself never to do anything like that again.

 

BTW it was a very light c70 swapped out for a wave fork.

[KeraKing]

Please, go ahead. I'd like to see you try.

 

Accidents are serious and the chances of it occurring rises exponentially with the amount of improper modifications due to insufficient understanding and knowledge that leads to the degeneration of the capabilities of a motorcycle.

 

Lives are being endangered here, somehow people of Sillypore are willing to risk their lives (and others!) to reach a certain destination just a minute earlier. Don't add to that number.

 

Remember, any vehicle that has been sold on the market have been extensively tested and most are able to pass the QC before even launch. Hence it is reasonable to assume that stock parts are most compatible with the bike, though aftermarket parts, if they belongs to well-known or reputable companies are able to provide an increased in performance by swapping out certain parts.

 

Similarly, without a sufficient amount of knowledge and technical expertise, any modifications would be dangerous, even if the eventual results turn out well. It's not reputable, nor is it of quality manufacturing. Other effects of Accidents, insurance and everything have been discussed above.

 

However, if you feel it is worth the time and effort as well as money to do so, please go ahead and do it. After all, you are entitled to your own opinion. Though, you need to prepared for any consequences that might follow.

 

Given this, an example would be in order: Would you feed milk products from China to your child or would you go for Enfagrow and likes?

 

yes i will try it.. and post it dun worry.

now is thinking and about rear wheel. need a 3.50x17 or 3.00x17

 

i'd rather feed a lady's breast to my child thankyou very much.

[KeraKing]

Mechanic is at the bottom of the knowledge pyramid with regards to the entire design, structure and build of the motorcycle. It takes people specialised in different fields to build a bike. Can a mechanic possibly understand the more profound concepts of metallurgy? aerodynamics? These are the responsibility of engineers and designers and many people who are good in one aspect to combine to a finished product. A mechanic only knows enough of everything to keep your bike running.

 

Asking a mechanic to trial&error yr swingarm is like asking a clinic assistant to trial&error yr prescription. Some thing can anyhow eat, some cant. Bike some thing can anyhow mod, some, better dun.

 

If you really need to mess with the swingarm, those top brand aftermarket companies with R&D that can make extended swingarm for big bikes like busa are more dependable.

 

 

 

If you are not racing for the podium in yr career, probably its not worth it.

 

i believe FORUMERs are at the bottom.. yet they tend to think they know a whole lot more than mechanics

 

Well, not just making air with my mouth, I had a swapped front fork stem break in two. Luckily I wasnt going anywhere fast and swore to myself never to do anything like that again.

 

BTW it was a very light c70 swapped out for a wave fork.

 

haha lucky you. why u put c70 stem in wave?

Edited August 16, 2011 by KeraKing

[KeraKing]

Agree...

 

That's why I have mentioned....

 

You trail.... & You feel the "Error"!

 

of course i'm gonna ask him try first..

together go PG then ask him try the bike

[KeraKing]

See how Singaporeans are easy to be kept in line? New, unorthodox, different is dangerous, lets wait for others to try first. Across the causeway is enough, they do extreme internal and extreme external, most extreme I've seen in SG is a phantom with KR fairing.

 

dats how the govt wants bro..

but in the end they go and bring in foreign Talents.. haha

[KeraKing]

Am just another armchair mechanic hiding behind a keyboard.

 

I just happened to have transplanted the entire front end of my XR, swapped the swingarm, played around with different forks and shocks, different linkages, different wheels, different brakes, different carb. Nothing much at all.

 

Lessons learned - pains outweighs the gains substantially. Stock works best 90% of the time.

 

so u give up? hehe.

i disagree that stock works best.

just look at nsr150.. it so easy to make better.

 

stock tyre= irc 120/80 (heavy, no grip)

better tyre: battlax 110/70 (lighter more grip) 120/70 more stable, ect.

 

stock brake: nissin thailand 2 pot (no enough initial bite at 170k/mh and abouve), and easy to lock during rain

better brake: brembo 4 pot stornger and harder to lock.

 

stock carbutrettor: tiny 28mm round slide (stutter at 5-6rpm)

better carb: flatslide 30/32/33 mm.. (smooth. no stutter, stronger throughout the range)

 

rear shock: non adjustable, bouncey like a limp ****

better: found a cheap one from a yamaha tz125 (125cc gp model) and change spring to suit. full adjustable and can set swee2.

 

stock exhaust: heavy like a brick and can only pull until 11.5k rpm

chamber pipe+carbon silencer: can carry using finger and can clear 13k, ect

 

forks: put in mito (40mm?) usd forks. more solid, rigid, better feel and feedback during corner more stable and planted yet faster turn ins

 

stock sprocket: 520 same like scrambler and same like 250cc (over spec'd?)

change: 428 lighter cheaper and more suitable for high rev?? (motogp 125cc can go 240km/h yet only use 415)

 

stock footrest: knees and shin touching the fairing, corner need to tiptoe.

racing footrest: solve above problem, better feel and better control in corner.

 

fast throttle: need lesser effort/lesser turn

carbon reed valve: quicker response

 

think there's still some more never mentioned.

but as i can see there a lot of improvement that can be made over the budget stock bike.

the best part is all modification done when still studying and no proper job.

 

regrets: trading it in for pgm3 (not the pgm3 part, but only the trading in)

never tried the usd forks on track

only got lobang for honda rs125 wheels after trading it in

never got chance to test two sided swing arm.

Edited August 16, 2011 by KeraKing

[Jehuty]

Where to get flatslides? I believe for 2 strokes, change exhaust and carb nets the most gains, the rest involves block machining of some sort, port here and there.

[KeraKing]

Where to get flatslides? I believe for 2 strokes, change exhaust and carb nets the most gains, the rest involves block machining of some sort, port here and there.

 

u got pm....

[stoner]

ha...ha...ha....

 

You still don't get it.....

 

Well.... You Win.... You're the Hero... ...

 

But... there goes a saying.... Hero dies first! Good Luck! Mate.... You'll need it!

 

Cheers!

[KeraKing]

ha...ha...ha....

 

You still don't get it.....

 

Well.... You Win.... You're the Hero... ...

 

But... there goes a saying.... Hero dies first! Good Luck! Mate.... You'll need it!

 

Cheers!

 

haha no worries bro..

we live then we die.. some like to explore diff things.. some like to play safe