Piston yg bagus/recomended utk rs125

RS125 Prox Piston Kit
Piston kit to fit a aprilia RS125 All Years Both Rotax 122 & 123 Type engines

Prox Pistons kits Are Made in Japan and is the same quality as the original Aprilia part.

Piston kit contains piston, piston ring, gudgeon pin and 2 circlips.
Price: £73.15 (£84.12 (inc vat) Including VAT at 15%)




RS125 Vertex Piston kit Twin Ring Std Type
Vetex Piston Kit For The RS125

This Piston Is A Direct Replacment For The Std Item With 2 Piston Rings

Vertex Pistons Are Made In Italy With A Molybdenum Coating,

Piston Size Is 53.98mm

Price: £55.32 (£63.62 (inc vat) Including VAT at 15%)




RS125 Wiseco Piston
Wiseco Piston kit to fit a Aprilia RS125 / AF1 ROTAX 122 & 123 type Engines

This is a Wiseco Piston kit made in The USA, The Piston is Forged For Better Strength.

Piston kit contains piston, piston rings, gudgeon pin and 2 circlips.

This Piston Is Suitable For Road And Racing Use

Price: £87.56 (£100.69 (inc vat) Including VAT at 15%)

cehh.. aku punya piston KOTEX x bising pun...
br hr ni nak up pasal piston, dah terbeli n terpakai dah.. kotex pun kotex la..

presiden bush.. mana mau dpt pro x, wiseco @ vertex kat area kl ni?? harga??

TT9 wrote:

cehh.. aku punya piston KOTEX x bising pun...
br hr ni nak up pasal piston, dah terbeli n terpakai dah.. kotex pun kotex la..

presiden bush.. mana mau dpt pro x, wiseco @ vertex kat area kl ni?? harga??

mana la aku tau kt mana nk dpt....


P/S:
Piston2 yg direcomended klau bole BUKAN standard size.
yg diorder & di'recomended LEBIH BAIK size'nya adalah
-53.99 - D
-54.00 - E
(ikut size cyclinder block sebelum order)

sbb block cyclinder tu dh besar...
klau pakai standard size...
mmg tkde effect apa2 pada power & compresion...
pakai size besar akan menambahkan lg power moto anda yg dh tua itu..

P/S:
-harga oversize piston juga berbeza-beza...
-TAPI klau beli blok standard baru..bole la pakai standard piston size 53.98 - C

Club President wrote:

TT9 wrote:

cehh.. aku punya piston KOTEX x bising pun...
br hr ni nak up pasal piston, dah terbeli n terpakai dah.. kotex pun kotex la..

presiden bush.. mana mau dpt pro x, wiseco @ vertex kat area kl ni?? harga??

mana la aku tau kt mana nk dpt....


P/S:
Piston2 yg direcomended klau bole BUKAN standard size.
yg diorder & di'recomended LEBIH BAIK size'nya adalah
-53.99 - D
-54.00 - E
(ikut size cyclinder block sebelum order)

sbb block cyclinder tu dh besar...
klau pakai standard size...
mmg tkde effect apa2 pada power & compresion...
pakai size besar akan menambahkan lg power moto anda yg dh tua itu..

P/S:
-harga oversize piston juga berbeza-beza...
-TAPI klau beli blok standard baru..bole la pakai standard piston size 53.98 - C

abis tu, potai2 kat kl ni dpt piston kat mana?
camne nak ukur silinder tu, guna pembaris besi ker?
camna nak tau nak guna 53.99 @ 54.00?

chip. harga dlm malaysian currency xdak ka

akuNabil wrote:

chip. harga dlm malaysian currency xdak ka

kasi kali la itu pound punya currency....
dlm RM500 rasanya....
klau currency naik...naik ler harga..
lg 1...
oversize piston lg mahal skit drpd standard piston...

TT9 wrote:

Club President wrote:

TT9 wrote:

cehh.. aku punya piston KOTEX x bising pun...
br hr ni nak up pasal piston, dah terbeli n terpakai dah.. kotex pun kotex la..

presiden bush.. mana mau dpt pro x, wiseco @ vertex kat area kl ni?? harga??

mana la aku tau kt mana nk dpt....


P/S:
Piston2 yg direcomended klau bole BUKAN standard size.
yg diorder & di'recomended LEBIH BAIK size'nya adalah
-53.99 - D
-54.00 - E
(ikut size cyclinder block sebelum order)

sbb block cyclinder tu dh besar...
klau pakai standard size...
mmg tkde effect apa2 pada power & compresion...
pakai size besar akan menambahkan lg power moto anda yg dh tua itu..

P/S:
-harga oversize piston juga berbeza-beza...
-TAPI klau beli blok standard baru..bole la pakai standard piston size 53.98 - C

abis tu, potai2 kat kl ni dpt piston kat mana?
camne nak ukur silinder tu, guna pembaris besi ker?
camna nak tau nak guna 53.99 @ 54.00?

ko bole masukkan piston lama ko tu kt cyclinder blok tuu..
tgk ada byk clearence tk...
klau byk clearence..kena la up .01 lg besar...
klau 53.98 dh lobos gak...
kena la tukar ke 53.99 @ 54.00 utk bg fit balik....

kang kalu lobang Mak Jan dh besar...
kena la cari batang yg besar gak nk bg fit...

ukur pakai angkup vernier lar...

sains 101 darjah 4 dulu

piston 250 macam maner plak??boleh pakai menatang yang same ker???

sementara currency pound tgh drop nih xsilap 5.***rggt = 1 pound dulu 6.***rggt = 1 poun

rase rege makin murah ker???xjugak...cis...

Club President wrote:

RS125 Wiseco Piston
Wiseco Piston kit to fit a Aprilia RS125 / AF1 ROTAX 122 & 123 type Engines

This is a Wiseco Piston kit made in The USA, The Piston is Forged For Better Strength.

Piston kit contains piston, piston rings, gudgeon pin and 2 circlips.

This Piston Is Suitable For Road And Racing Use

Price: £87.56 (£100.69 (inc vat) Including VAT at 15%)

aku cadangkan pilih wiseco sebab dalam banyak2 jenis piston, cuma wiseco yang diperbuat dari forged aluminum (ringan, mudah hi-rev). jenis2 lain ada yang forged tapi bukan forged aluminum. aku tengah tunggu stok piston dome-top wiseco utk mito kat www.pjme.co.uk. website2 uk lain ada jugak jual wiseco tapi lebih mahal...

DesertGoon wrote:

Club President wrote:

RS125 Wiseco Piston
Wiseco Piston kit to fit a Aprilia RS125 / AF1 ROTAX 122 & 123 type Engines

This is a Wiseco Piston kit made in The USA, The Piston is Forged For Better Strength.

Piston kit contains piston, piston rings, gudgeon pin and 2 circlips.

This Piston Is Suitable For Road And Racing Use

Price: £87.56 (£100.69 (inc vat) Including VAT at 15%)

aku cadangkan pilih wiseco sebab dalam banyak2 jenis piston, cuma wiseco yang diperbuat dari forged aluminum (ringan, mudah hi-rev). jenis2 lain ada yang forged tapi bukan forged aluminum. aku tengah tunggu stok piston dome-top wiseco utk mito kat www.pjme.co.uk. website2 uk lain ada jugak jual wiseco tapi lebih mahal...

owh itu mcam ka.. forged aloi sama dgn original rotax rs125 piston

PEMBERITAHUAN!!!

SESIAPE NK BELI PISTON 'PRO X', BLEH LA BELI KT CHIP AZ,
ATAU PUN HUBUNGI AKU WAN SELIPAR HANYUT SPRING STAND PUTUS......
CEPAT ORDER KLU TK HABIS....

aduhhhh....ni yg malas ni nk promote brg.....
barang dh ade tapi orgnye plak hilang...
dulu mcm ramai je tny nk piston..
skrg brg dah ade...senyap plak...
sape mau pistonnnnnnn!!!bleh order skrg......

selipar wrote:

PEMBERITAHUAN!!!

SESIAPE NK BELI PISTON 'PRO X', BLEH LA BELI KT CHIP AZ,
ATAU PUN HUBUNGI AKU WAN SELIPAR HANYUT SPRING STAND PUTUS......
CEPAT ORDER KLU TK HABIS....

ehh...mcm lain je ayat aku kt atas ni....
ade plak nasi tambah .....

p/s: KEPADA MEDERATOR, JANGAN BUAT NASI TAMBAH.........

selipar wrote:

selipar wrote:

PEMBERITAHUAN!!!

SESIAPE NK BELI PISTON 'PRO X', BLEH LA BELI KT CHIP AZ,
ATAU PUN HUBUNGI AKU WAN SELIPAR HANYUT SPRING STAND PUTUS......
CEPAT ORDER KLU TK HABIS....

ehh...mcm lain je ayat aku kt atas ni....
ade plak nasi tambah .....

p/s: KEPADA MEDERATOR, JANGAN BUAT NASI TAMBAH.........

agak2 MOD mana yg dok edit2 ni?


p/s: wan, kalau nak jual barang, letak kat thread "barang untuk di jual", cepat sket laku

polini x letak pulak dlm senarai harga....
malaysia ade agen polini x?

mitzero wrote:

polini x letak pulak dlm senarai harga....
malaysia ade agen polini x?

moto millia

akuNabil wrote:

mitzero wrote:

polini x letak pulak dlm senarai harga....
malaysia ade agen polini x?

moto millia

kalo bajet cukup2 makan roger pidot.. hari tu dia ada sembang ngan aku dia ada jual set polini.

krolzizi wrote:

akuNabil wrote:

mitzero wrote:

polini x letak pulak dlm senarai harga....
malaysia ade agen polini x?

moto millia

kalo bajet cukup2 makan roger pidot.. hari tu dia ada sembang ngan aku dia ada jual set polini.

pidot juai set polini? barunye ke?
piston,bearing,gideon pin, lock pin nye sekali?
harge?

kalo moto milia pulak bape arge?

aduhhh.....
blok POLINI?
Piston POLINI?
sape nk pakai ni wei..?
habaq mai?
org klu pakai kit ni selalunye nk pergi BERPERANG je...
ade ke kengkawan kita ni nk pergi BERPERANG?
jgn...jgn berumah di tepi pantai klu tk nk kene ombak besar....
byk belanja ni....
yg standard tu pun dh kira laju....
nk laju mana lagi...

PISTON ni tk kira la WISECO ke PRO X ke, ROTAX ke, VERTEX ke...
klu dh sampai masa, dia hancur gak...
aku pakai PRO X pun piston hancur....
aduhhhhh...mampossss....

selipar wrote:

aduhhh.....
blok POLINI?
Piston POLINI?
sape nk pakai ni wei..?
habaq mai?
org klu pakai kit ni selalunye nk pergi BERPERANG je...
ade ke kengkawan kita ni nk pergi BERPERANG?
jgn...jgn berumah di tepi pantai klu tk nk kene ombak besar....
byk belanja ni....
yg standard tu pun dh kira laju....
nk laju mana lagi...

kalau bukan dalam keadaan berperang pun kita kena bersedia2 (untuk perang)... kang tetiba orang serang.

DesertGoon wrote:

selipar wrote:

aduhhh.....
blok POLINI?
Piston POLINI?
sape nk pakai ni wei..?
habaq mai?
org klu pakai kit ni selalunye nk pergi BERPERANG je...
ade ke kengkawan kita ni nk pergi BERPERANG?
jgn...jgn berumah di tepi pantai klu tk nk kene ombak besar....
byk belanja ni....
yg standard tu pun dh kira laju....
nk laju mana lagi...

kalau bukan dalam keadaan berperang pun kita kena bersedia2 (untuk perang)... kang tetiba orang serang.

betul...betul... hahahahahaha
sokong....

selipar wrote:

PISTON ni tk kira la WISECO ke PRO X ke, ROTAX ke, VERTEX ke...
klu dh sampai masa, dia hancur gak...
aku pakai PRO X pun piston hancur....
aduhhhhh...mampossss....

tu sebab ko bwk laju sgt kat terowong aritu !! hihihihih

blok wantupai ni bleh korek2 macam blok kapcai tak ??
ade tak geng2 yang tambah capasiti silinder smpai jd 150cc ??

ran wrote:

selipar wrote:

PISTON ni tk kira la WISECO ke PRO X ke, ROTAX ke, VERTEX ke...
klu dh sampai masa, dia hancur gak...
aku pakai PRO X pun piston hancur....
aduhhhhh...mampossss....

tu sebab ko bwk laju sgt kat terowong aritu !! hihihihih

BUKAN lah....
moto dia jem bukan pasal bwk laju dlm terowong aritu...
moto dia jem lepas kena badi tolak R1 rosak aritu....

v3t0 wrote:

blok wantupai ni bleh korek2 macam blok kapcai tak ??
ade tak geng2 yang tambah capasiti silinder smpai jd 150cc ??

Nikasil tidak bole dikorek @ direbore...
dan yg PASTI
blok aprilia ko & blok rs250 @ mana2 blok yg menggunakan lapisan Nikasil...

ok tk jawapan tuuu?

kire korek tak boleh, bore-up pon tak boleh la ye..
bagus jawapan tuan tu

v3t0 wrote:

kire korek tak boleh, bore-up pon tak boleh la ye..
bagus jawapan tuan tu

nak gatal pakai piston besaq ang carik racing kit...
macam dalam u tube dorang kater jadik RS300cc...

woi....RS250 pon minyak macam aiyak nyoir...heheheh

zynox wrote:

v3t0 wrote:

kire korek tak boleh, bore-up pon tak boleh la ye..
bagus jawapan tuan tu

nak gatal pakai piston besaq ang carik racing kit...
macam dalam u tube dorang kater jadik RS300cc...

woi....RS250 pon minyak macam aiyak nyoir...heheheh

bila nak ronda ipoh zynox?? bleh aku test power 250 lak.. mana le tau kot2 nak upgred nanti

from the net...
Forged vs. cast pistons?

The main difference between a cast and forged piston is the grain structure. As dell mentioned, a forged piston is pounded into shape and as a result the metal stretches and and elongates as the piston takes shape. The elongated grain structure is like fiber reinforcing and it makes for a very strong piston. A cast piston ,on the other hand, is made up of grains that are all the same size because it starts out as a liquid that, after being poured into a mold, cools and takes the intended shape.

If you break a forged part and a cast part you will see the effect of the grain structure. The forged part will have what looks like a stringy texture to it (at the break interface) and the cast part will have a more consistent sand texture to it. Also the cast part will break “cleaner” while the forged part will have a more jagged break line.

The difference in break in is also due to the manufacture process and internal stresses that have been left in the finished part. A cast piston has fewer internal stresses since it was able to seek it’s own internal grain structure “harmony” as it was made. The forged piston has lots of internal stresses from being beaten into shape. Before either piston is machined into the correct shape the stresses are all in balance so they are stable and maintain their shape. Once they are machined they are susceptible to becoming unstable at high temperatures and loosing their shape. Since a cast piston has fewer internal stresses, it won’t distort nearly as much.

To relieve the internal stresses and maintain the right shape, the piston has to go through a series of heating and cooling cycles. As it heats up the grain structure is allowed to “realign” itself to relieve any stress. As it cools it is important the contain the piston (in the cylinder) to make sure it stays round. After a few heat/cool cycles the internal stresses become “in balance” and the piston maintains it’s shape for the rest of it’s life.

In addition to the microstructural differences, another downside to casting is that porosity may develop from a couple of different sources. Fine pores can arise from decreased solubility of gases in the solid compared to the liquid. Larger pores can arise from shrinkage from the solid to the liquid phase, but a well designed molding process should be able to avoid this.

Most cast pistons are Al-Si alloys with fairly high silicon content (Vertex claims 18-20%). The silicon helps reduce shrinkage during solidification and has the added benefit of increasing the wear resistance. This is one possible benefit of cast pistons. Wiseco claims their forged pistons also contain silicon, but I'm not sure what alloy system they use.

Since forging does increase strength, it should be possible to design a piston with less material than a casting and still meet the strength criteria. For this reason, a forged piston could be lighter.

The other consideration (and a biggie) is the shape and lubrication properties. Cast pistons are more porous, and tend to 'keep' more oil on them naturally. Forged pistons generally have a few lateral groves machined into the skirt to keep the oil as good as a cast unit.

The high Si content of the Cast piston does allow the builder to have a more consistent shape at temp, but the trade off is reliability. 18-20% Si is going to be a VERY brittle piston. and will not sustain high loads (thermal or inertial) for very long.

Aftermarket piston manufacturers like Wiseco, Cosworth, Arias and JE use a high Si forging to create the 'Ultra lite' type of racing forged piston. I think 6-8% Si last time i checked.

If you plan on racing your machine on a max effort type of schedule, then use a cast piston and change it every race. otherwise, go with the lightest forged unit available, and change it when it needs to be changed. This decision is based on the break-in, time to temp and average Hp/Tqe figures of the 2 piston types.

http://www.partsmag.com/0410/Wiseco-0410/Wiseco-0410.html