Re: Random Questions regarding the RX series


rx kings block, could be chinese

Re: Random Questions regarding the RX series

always suspect that sweet deal, thanks. bajaj bikes? had the classic 150 220 f 200 ns, found the quality of bajaj to be bargain bin, good stuff poor quality control.

notwithstanding bajaj, do you have info on the flower head? is it better than stock or just some marketing gimmick?

my bore piston gave up the ghost and my head has pock marks near the spark plug( or the bowl where the spark plug sticks in from the top)

since I already have a rxk block thought of getting a requisite head, till now I have unable to get the rxk head so looking for options

Re: Random Questions regarding the RX series

try facebook for the head

and for the deal ive owned a p180 for over a decade and the kb for even longer , and ive had no reason to suspect anything

Re: Random Questions regarding the RX series

An RX 100 or the RX 135 4 Speed are no match to the RX 135 5 Speed.
1. 5 Speed is much much more refined than both the 100 and 135-4S
2. 5 Speed performs like a roaring tiger who just got up from his sleep. RX 100 and 135 4 S are no match to it
3. 5 Speed gives even more mileage than the 100 and 135 4S (around 45kmpl)
4. 5 Speed rides much much better than 100 and 135 4S in city riding conditions, you can ride at 20kmph in 5th gear with no hiccups and a cigarette in your hand
5. 5 Speed rides much better than than 100 and 135 4S on the highway with top speeding upto 120kmph under stock conditions
6. 5 Speed even looks better than the 100 or the 135 4S (color, graphics and the cat-con scheme)
7. 5 Speed is all open to performance modifications upto any degree. RX 100 and RX 135 4 Speed are not at all. They get overloaded, can't perform, wear out & die
8. Last, but not least, 5 Speed is the best if you want to ride gentle. 5 Speed is the best if want to ride crazy. It is a pocket rocket which will behave as per your mood

Re: Random Questions regarding the RX series

Typical fanboy talks. I own all 3 bikes so here is my take.

1. Refinement, you have to define refinement. No one can say 5s is more refined than 4s or a 100 for that matter. if refinement is less vibration, all bikes can be made to vibrate less, if its linear pickup then nothing beats the 100.
2. You have definitely not ridden a well tuned example of a 4s and a 100. I feel 100 is more peppy to ride while the 4s has more potential.
3. I have not bothered much about mileage but the rx135 5s has smaller jets so chance of better mileage is higher.
4. wrong, the 5 speed has bigger ports so its more of a highway performer than a city bike when compared to the other two. You are wrong about the gearing as well, all bikes share same gears from 1-3, its only the 4th gear and 5th gear that is different in a 100/4s and 5s. 5th in 5 speed has .917 drive ratio and the 4 speed has 1 final drive ratio, the 4s has 34T rear sprocket(RXG has 37T) and the 5S has 38T, it is marginally faster in each gears.
5. I agree with you on this point, won't comment on speed.
6. Looks are subjective, I love the 4S blue tank more than any 5S tank.
7. wrong, 135 4S have more potential to be modified, the cylinders are perfect for porting and will eat a 5s for breakfast even if 5S has similar mods.
8. 5S are definitely not gentle on the pocket anymore, the cylinder itself costs 14-20k depending on the size, the gearbox can cost 8k+, the engine covers are 7-9k and the carb and head costs 3-4k each.

Yam

Re: Random Questions regarding the RX series

I am not a two stroke expert but have ridden well maintained examples of all the main three RXs. Here's my take on them.

Rx100- very engaging. That metallic exhaust beat is just addictive. Acceleration is very good till 100 kph but thats almost it. Not much post that.

Rx135 4speed- very strong bottom end and midrange. Pretty scary as it pops out unintended wheelies easily in all gears. Not a good exhaust note. Probably the fastest RX in 0-100. But again all the fun ends post 100kph as there is not much top end power.

Rx 135 5speed- exact opposite of the 4 speed. Feels dead in bottom end and midrange. Worst exhaust note. But it's like godzilla waking up from hibernation, once it enters the top end. The mad top end rush is only matched by the suzuki shogun. Does 120kph easily and it feels best on the highways.


All the three have their unique characters. It depends on what you like. 100 is the overall most engaging, 135 4s is pure hooligan in the city while 135 5s is like a nerd in the city and super hero on the highway. I've described how these machines perform in pure stock form.

All of them have huge modification potential. But, personally I feel that the 4s 135 would be the most dangerous RX if modded properly.

Note- If you want all the above mentioned characters of the RX trio ( engaging exhaust note, hooliganistic midrange and absolutely mad top end) find a mint condition 1993-95 suzuki shogun ( very hard to find). You would not regret it.

Re: Random Questions regarding the RX series

Respect your point of view and take brother.
I also own all 3 bikes, add to that the RD 350. Of these the 4-speed and 5-Speed RX 135s I purchased all new in 1999 and 2001 respectively. RX 100 I purchased a pre-owned 1996 model which i completely restored to factory specs with all original spares including the 36L00 Cylinder Piston assembly, the Mikuni Carburettor and the clutch assy.

I might not have 'that' much of technical knowledge but allow me to explain as a lay-man'\

1. find the 5S best refined as it is smooth in its overall ride quality - feels heavy, controlled and goes like a silent powerhouse, the bike is effortless till at least 90kmph on the odometer. No jerks, almost no vibrations even at 100kmph
2. Would be great if you can guide me on 'tuning' aspect. I would apply that on my 100 and the 4-Speed and test. I also felt 100 to be peppier initially but overtime i realized the credit for this feeling mostly goes to it's exhaust note. That sound surrounds you. For the potential that 4S holds i'm clueless and personally ride it the least of my 4 bikes. Moreover, I see fanatics and experts doing the mods and recommending the 5S
3. Mileage, yes, gives me around 45kmpl
   
4. While the technicalities involved are correct but with my 5S I have felt she performs best at both the sides of performance spectrum. RX100 and the 135 4S share 2nd position with the 100 claiming the initial part of spectrum and the 4S the latter part
5. Hi-5
6. Agree, look are subjective. But didn't you find the 5 speed colors cum sticker scheme much more modern and techy?
   
7. I am a little surprised. What makes the cylinder so perfect for modifications that it can eat up the 5S even if the 5S one is loaded with same modifications? Make me learn here
   
8. Agree with you on this. But don't you think its is yet again because of the demand of the bike spares. Demand in turn because of overall performance
   

Well brother, i started riding way back in 1994, 1st 2-wheeler that i drove was Bajaj Super 1989 model. That is still with us. Gradually as i was growing up I welcomed my Dad's friends, their families over tea, lunch or dinners. And I were exposed to Shaolin, CD100, Samurai, Premier Padminis, KB-100 etc. It was in 1996, during the Wills World Cup that a long forgotten friend of Dad showed up for the India Vs Sri Lanka semi-finals at our home. I were and still not am interested in the game of cricket but, in our garden I noticed an altogether new bike, which i had not come across so far. And as usual i was excited. This bike was looking even cool - with a round headlight (unlike KB100) and a superb chassis design (unlike a Samurai or CD 100 who used to look stouts). Stole the keys, had it out on the road with the help of junior labour cousins, and the 1st kick - Whoa! still remember the sound. And The rest is history.
When i were about to pass my high school i had started poking dad to get me the RX 100 but when we went out to Bhalla Motors (in Aligarh, UP) we both discovered that the bike is long discontinued and a better version of the same is available which is branded as RX 135. The sales team went all out and i were disappointed. Those were not the times of test rides but they gave me one, and the moment i kicked it, i knew it as an RX 100 BUT in a better avatar. Salesmen were finally relieved.
We took the bike home, i passed out the X grade with 72% marks. I were so happy joining college with my new Rx 135. Passed 12th std, the bike had no complaints so far, but 2 years down the line and 18,000 on the odometer the bike started showing glitches, especially problems related to clutch, there used to be a certain instability during riding always, be it at lower end or a higher end. The bike were asking for tuning every now and then etc. The mileage used to differ big times between services, though i had never taken any of my automobiles to road mechanics. Then the same friend of Dad who was here for Wills World Cup semi -finals left for Sri Lanka regarding a job opportunity. And he had noticed that I liked his 100 much, so he handed it over to Dad (basically for me). It was this time that i went back to the 100 and got the opportunity to ride it full time. I noticed that of course the 135 is a better version of it when it comes to throttle response and handling but what i loved about 100 is that it screamed at ease and it was very comfy at low rpms. No Jerks, no tuning required every now and then. It was not that quick. I was loving it and then one fine morning i came across a Print Ad in Times Of India with Marc Robinson as the model - and to my disbelief - there was an ever better version of the 100 as i could make it - the RX 135 5 Speed. I missed the 100 but i was in no mood to miss this. Feb 2001 we got 2 5Speeds - 1 each for me and my younger brother - both Maroon. 2001-2008 literally no complaints from both the bikes, we brothers had the University lane at smoke with the likes of Pulsar 150- Definitely Males and the bullets kept at bay. Meanwhile we both being just engaged in the 2nd and 3rd gears only. No time for 4th and for the 5th we needed a race track may be.
Touch-wood, no specs altered, but the 5speed has filled all the gaps that the 100 and 135 4S had left. A complete bike for me, and hence...
The FanBoy


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Thanks MotoMan,
You just made me feel like a brother in arms

I also am not a 2-Stroke expert, just imbibed from what i have seen, experienced through riding and noticed around.
Me owning an RD 350, RX100, RX 135 and the RX 135-5Speed doesn't qualify me as a technological expert. What i had shared was general experience. i liked the 2 Stroke thump and hence ended parking each in my garage doesn't call for me to be an expert.
Still;

1. RX100 - Very Engaging, the shorter the charcoal lane the more engaging it is. Acceleration is good till 80 only. At 100kmph it makes you realie that you are exploiting it. It touches that bit not before making you realize. Post that nothing.
2. RX135 4Speed - i purchased it new and believed it to be a betterment of the 100, but after 2 years it started showing abnormal behavior which, forget the mechanics, even the agency people took no responsibility of. Pretty scary as it pops out unintended wheelies easily in all gears. Cannot agree more. Plus the exhaust note was quite like a dumb ass. Add to it the jerks in clutch. Fastest RX in 0-70 (not 0-100 pls)
   
3. RX 135 5Speed - That's what i had tried to explain our dear friend in the post - dead at the bottom - and hence may be thats' why a good ride in traffic packed city conditions. Keep yourself low, UNLEASH YOURSELF when it comes.
4. Why is that the 4S would be the most dangerous when modified? What if we modify the 5S basis the same mods? Forget the 4Speed, 5Speed has it own modifications way far

Re: Random Questions regarding the RX series

[MENTION=102189]AFNJ[/MENTION] Very happy to see your collection brother.

I have also ridden 4s and 5s which were fully ported and used power chambers. There also the 4s felt wild and scary still pulling off wheelies while the 5s felt very tame and felt scary only on the highway where it blasted away like a ballistic missile. Again I don't know the technical aspects behind it, it's just what I felt. A full port 5s easily beats a RTR200, that too in 4th gear.

India being a price and mileage sensitive market has always got seriously detuned products. The Indian RDs, RXs and suzukis are all examples of this scheme. The bikes which our neighbours got-

Rx115- sold in Pakistan, Bangladesh, etc. Produced 15.5 bhp in stock.

Rx125- 15.5 bhp, 5 speed. Was almost about to be launched in India but yamaha launched the RXG instead.

RxKing/Rx-Z (135)- 18.5 bhp, 5 speed. Sold in Indonesia and malaysia.

Suzuki TXR150- 26.5 bhp, 5 speed. Sold in Indonesia and malaysia.

Tvs suzuki shadow- 150cc, some 18bhp, 5 speed. Launch was cancelled due to new emission norms.

Aprilia rs125- 28bhp stock. Proper super sport design.

Through the 5s 135 and suzuki shogun, we just got a glimpse of the huge potential these two stroke beauties have.

Re: Random Questions regarding the RX series

because the 4 speed is a very strangled design with just barely enough exhaust duration(time the exhaust port remains open) to keep the engine running, and that means you can raise the exhaust port more (make the exhaust port bigger) thereby making more power,compared to a 5 speed cyl that already has a higher exhaust duration

Re: Random Questions regarding the RX series

huh all of you talking about the 100 135 4s and 5s. Nothing can beat the RXG, go on and change your mind.

Re: Random Questions regarding the RX series



Glad you owned/Own all of the bikes, but most of your statements contradict themselves

Originally posted by AFNJ View Post

Pretty scary as it pops out unintended wheelies easily in all gears.

Originally posted by AFNJ View Post

Cannot agree more. Plus the exhaust note was quite like a dumb ass. Add to it the jerks in clutch. Fastest RX in 0-70 (not 0-100 pls)

The answer to this is, No. They don't pop wheelies like you mentioned. Power wheelies are a different ball game altogether.

Originally posted by AFNJ View Post

RX 135 5Speed - That's what i had tried to explain our dear friend in the post - dead at the bottom - and hence may be thats' why a good ride in traffic packed city conditions. Keep yourself low, UNLEASH YOURSELF when it comes.

How can something that is dead at the bottom be a great cilty rider? you have also mentioned in your post that you can cruise in the 5th gear at 20 KMPH, if that is the case then it has very short gearing, which is also not true.

Originally posted by AFNJ View Post

Why is that the 4S would be the most dangerous when modified? What if we modify the 5S basis the same mods? Forget the 4Speed, 5Speed has it own modifications way far

KB 100 has already mentioned this so not getting into that.

Now my intend of the post is not to call you out, besides me and you there are countless people who read these threads and their takeaways would be that 5 speed bikes are superior, well that's not true at all. The 5 speeds became popular due to a very different reason.

People in Kerala are responsible for it, if you have the patience please read on.. The RXZ 5 speed was a very limited production machine, especially in Kerala there weren't many. It had no takers then, reason; they were too flimsy. But as time progressed the rarity of these machines made them a must have bike, people started converting their 4 speeds to 5 speeds. 99.999% of those rxzs were blue, only a handful were red, there were a lot more in other shades than red. lot of RX 135 5 speed bikes ended up in the scrap pile due to this and after most of their engine components were taken. A couple of years ago you could still buy a fully restored Rx 135 5 speed with proper paperwork for around 30k, now they sell for 80-90k.

Once the people had their desires filled with Rxz 5S, they slowly moved to RX 135, 5 speed. Fish mouth tanks and cat silencers are extremely overrated but in great demand. If you ask me if I like a 5 speed? the answer is no. But if you ask me if i would build a 5 speed RXZ? The answer is yes, purely for sentimental reasons.

RX 100s were selling for under 30 a couple of years ago, now they cost 80k on an average, that's nearly as good as a well maintained RX 135 5 speed.

For many years Kerala has stood as the epicenter of RX demand and RX pricing.

5 speed were always highway bikes, they were not dud in the city, but were sluggish compared to a 100 or a 4 speed.

Yam

Re: Random Questions regarding the RX series

[MENTION=73502]yam[/MENTION] what he intended is torque wheelies which happens due to the abundance of low end torque and overall lightness of the bike. The 135 4s has lot of torque at low rpms and the front tends to lift unnecessarily. The situation is worse if you have a pillion with you. The 100 also has this tendency but not as much as the 135. Heck, even a splendor/platina pops wheelies in first gear if the clutch is released carelessly.

Power wheelies are entirely different. Our member RTR996 has a 5 speed 135, full port with expansion chamber. In that configuration it pops a wheelie while shifting from 4th to 5th gear that too at 100+ kph. That's a pure power wheelie.

I am from Kerala and completely agree with you. Rx craze is all time high in our state. Thanks to some movies the poser value of these bikes has skyrocketed and so has the asking price. 4 years ago, me and my friend had a hunt for a suzuki shogun. Below is a comparison of prices then and now.

Before 2015

Rx100- 30-50k
Rx135- 30-40k
135 5s- 60k, still it didn't have such hype.
Shogun- up to 40k for mint condition and 12-15 k for beaten up ones.
Shaolin- 25-30k
Yezdi roadking- 40-50k max.
Max100/samurai- 8-12k

Current situation,

Rx100- 60-70k
135- 60-80k
135 5s- 80k- 1 lac
Shogun- 70-80k
Shaolin- 60-70k
Max100/samurai converted to shogun- 60-70k ( only aesthetic conversion)
Yezdi roadking- 1.3-1.5 lacs

Used bike dealers are benefitting from this craze. They sell mildly refurbished bikes to unsuspecting youngsters ( mostly below 20 ) who buy them at these exorbitant rates. When they find that it's expensive to maintain than a 150cc 4 stroke and in case of engine work finding spare parts is like finding a needle in a football stadium ( especially for suzukis ), most guys sell them back to the used bike dealer for lower price. In every way the bike dealer makes profit.

Edit: The 5s 135 which I have mentioned earlier in this post had performance modifications like full porting and expansion chamber. I being a novice in terms of two strokes popped the clutch at around 100kph while shifting from 4th to 5th that too giving full throttle, which resulted in a very light yet highly scary wheelie. It is absolutely not recommended to try this stunt.

Re: Random Questions regarding the RX series

We have gone way off topic, I have maintained that a stock 4s cannot power/torque wheelie and I stand by my statement. With a pillion the rear depressed so unintended liftoffs are possible, but that's besides the point.


Yam

Re: Random Questions regarding the RX series

Thanks Yam, Thanks MotoMan.
I see some learning there. But my bikes are all stock and no any modifications have been made in any form.
Any my personal preference remains as, in order;

1. RX 135 5 Speed
2. RX 100
3. RX 135 4 Speed
4. RXG

Thank you guys.


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Thanks Yam, Thanks MotoMan.
I see some learning there. But my bikes are all stock and no any modifications have been made in any form.
Any my personal preference remains as, in order;

1. RX 135 5 Speed
2. RX 100
3. RX 135 4 Speed
4. RXG

Thank you guys.



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This is a fake block.

1. The SI unit, cm³ is mentioned in upper case as CM³
   
2. The font in which 3KA20 is written is duplicate
3. The 7 edges of the fins have to be silver in finishing color, this block is blindy painted all black
4. Also, i believe there is nothing mentioned on the right hand side of the block - neither YP-1 nor YP-2

Also, sharing a picture with you for a quick reference brother.
Hope this is helpful.

Regards
A Farhat

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Dear KB100,
You mean 4 Speed has a small port which we can raise further. And that means we built in a higher exhaust duration.
Now the 5 Speed already comes with the port raised and a higher exhaust duration.

So, how come a 4 Speed block gets more dangerous upon this modification?
Why would i take all this pain when we got a 5 Speed which already comes with it?

Re: Random Questions regarding the RX series

it doesnt make the 4s block more dangerous, it just makes it a bit powerful without sacrificing much of the low end torque, which is non existent in the 5 speed