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**karthikdattag** · 06-22-2010, 01:03 PM

Digital Speedo Unit for Bikes

Hi Guys, just checked this piece of information & thought would share it with you all.

Kindly let me know if any of you are aware of this product & probably used in 2-Strokes.

Thanks.

Radon

Radon: A Digital Display Unit with a Lot More

A completely versatile Multi-Information Display Unit equipped with an On-Board Diagnostics (OBD) Computer to continuously monitor and display parametric vehicle data. An array of sensors provide the system with essential data like Speed, RPM, Temperature and Voltage that are processed and displayed on a clearly visible backlit LCD panel. The RADON is a direct fit for the Royal Enfield BULLET range of motorcycles and requires minimal modifications if any for complete operation in other models of motorcycles too.

FEATURES

Speedometer large character display
Trip Meter and 7-Digit Digital Odometer
Programmable Shift RPM
Digital RPM readout
Digital Engine Oil Temperature readout
Digital Battery Voltage readout
Digital Shift and Hazard Indicator
Super Bright LED Indicators

Source: http://www.phitesla.com/products.php

**kb100** · 06-22-2010, 09:22 PM

seen this in the gadgets section of bike india magzine sometime back , fits beautifully in place of the regular speedo in bullet not sure wether could be used in 2strokes though

**karthikdattag** · 06-29-2010, 06:34 PM

Rebuild Tips for RX Engines

I have seen many guys here wanting to re-build their respective machines, especially 2-strokes. I will limit to 2-strokes here as this is a thread for 2-strokes.

Some tips from my side when going for a re-build of RX engines:

Make sure you have enough money, atleast Rs.45,000/- in cash. Else atleast half of it for engine rebuild & then maybe the cosmetic stuff. I had taken the second approach. If, else, forget the re-build.
When concentrating on engine part the most important parts are:

Bore kit / cylinder kit / block kit
Head
Crank shaft with connecting rod
Engine bearings
Clutch bell assembly with plates
Gearbox
Carburettor
Spark Plug

So if the above mentioned parts are not available, then no point in re-building. Its always better to replace with brand new spares when completely doing a stock setup.
Everything can be found, if you knock at the right door at the right time. If yamaha showrooms are not having any stock then try for alternative ones. If trying is not your forte, then leave the stuff to experts who would do the service of arranging the parts & sending it across to you.
Be patient & try to build as much contact as possibe, because at the end of the day it is you who has the dream of a re-build.

Hope it was of some use.

- Karthik..

**sheelpriye** · 07-07-2010, 11:16 AM

I can't live w/o an RX.
This would be my 3rd or 4th.

Which model should i prefer? Aren't the spares for RX-100 more easily available?

^ i have had RX-100's in past and i am almost all at sea as far as mechanicals go, i have got a good mech who is simply the best as far as strokers go.

**karthikdattag** · 07-07-2010, 03:04 PM

Originally posted by sheelpriye View Post

I can't live w/o an RX.
This would be my 3rd or 4th.

Which model should i prefer? Aren't the spares for RX-100 more easily available?

^ i have had RX-100's in past and i am almost all at sea as far as mechanicals go, i have got a good mech who is simply the best as far as strokers go.

Frankly, if you cant live without an RX, then your shouldn't have sold it. Anyways we dont know under what circumstances you did so, hence no comments.

Coming to your question, my suggestion would be to go for a RX135 this time, preferably a 5-speeder. You will feel the transition from 11BHP to 14BHP to be very wild (Provided you ensure that it is actually running with 14BHP kit). And this 5-speeder can be taken all the way upto 18BHP with mods & for street use (not drag setup).

If you want to stick to RX100, then also ok. Spares are a big problem for any RX for that matter, especially the RX-Z 5-Speed. Best in terms of spares would be RX135 4-Speed & by all means it can be modified to smoke a stock 5-speeder/Shogun & so called 150CC 4-T performance bikes.

All the best & hope you choose the right bike.

P.S: My suggestion would be to pickup an RX for peanuts & then invest around 40-50K for engine + cosmetic rebuild as per your liking & keep this amazing machine for lifetime.

**MACH50** · 07-07-2010, 03:22 PM

modded bike smoking stock bikes............no big deal.

Modded bike smoking a well tuned bike..............hmm depends
1.on the rider.
2.on the state of tune and mods.
3.on the tarmac...........trying it out on track is different from trying it out on street.On streets the cool rider will always have inhibitions for ripping to the max,while the hot rider will always try to prove who is boss may run over people and animals......endangering all in the process.

Nothing's absolute and no machine is ideal

Lets all preserve and do our own rides,bcoz we love them ........Peace

**karthikdattag** · 07-07-2010, 03:43 PM

Originally posted by MACH50 View Post

modded bike smoking stock bikes............no big deal.

Modded bike smoking a well tuned bike..............hmm depends
1.on the rider.
2.on the state of tune and mods.
3.on the tarmac...........trying it out on track is different from trying it out on street.On streets the cool rider will always have inhibitions for ripping to the max,while the hot rider will always try to prove who is boss may run over people and animals......endangering all in the process.

Nothing's absolute and no machine is ideal

Lets all preserve and do our own rides,bcoz we love them ........Peace

RX135 4-speeder is just 12BHP, it has to be modded (Porting) to beat a 5-Speeder or a Shogun (Both being 14BHP). Even a badly tuned 5-speeder can beat a well tuned 4-speeder. More than anything else, it is the BHP that matters among RX atleast. Buddy i have done all these stuffs way back in 2002, when i got smoked by a RX-Z 5-speed, i was on a RX135 4-Speeder (Both stock with catcon). But that was the last.

**yamdoot** · 07-07-2010, 07:37 PM

how about a 5speed gearbox with a 4speed block? doesnt it have better initial for street?

**aargee** · 07-07-2010, 07:52 PM

Originally posted by yamdoot View Post

how about a 5speed gearbox with a 4speed block? doesnt it have better initial for street?

Yes it is; but then the sprocketing does the magic on initial pickup.

**sheelpriye** · 07-08-2010, 12:38 AM

Originally posted by karthikdattag View Post

Coming to your question, my suggestion would be to go for a RX135 this time, preferably a 5-speeder. You will feel the transition from 11BHP to 14BHP to be very wild (Provided you ensure that it is actually running with 14BHP kit). And this 5-speeder can be taken all the way upto 18BHP with mods & for street use (not drag setup).

If you want to stick to RX100, then also ok. Spares are a big problem for any RX for that matter, especially the RX-Z 5-Speed. Best in terms of spares would be RX135 4-Speed & by all means it can be modified to smoke a stock 5-speeder/Shogun & so called 150CC 4-T performance bikes.

All the best & hope you choose the right bike.

P.S: My suggestion would be to pickup an RX for peanuts & then invest around 40-50K for engine + cosmetic rebuild as per your liking & keep this amazing machine for lifetime.

I am really not very sure of the parts availability of RX-135 in my part and as per my mechanic it would be safer to tick with the 100 and the exhaust note of RX-100 has a nice ring to it.(Shogun is close).

Even i am planning to get one for 5-7K and spend some ~20K bit by bit.

I will prefer to keep it stock.(Mechanic's (in)ability, unavailability of parts and it shall be a commuter).

**karthikdattag** · 07-08-2010, 09:42 AM

Originally posted by yamdoot View Post

how about a 5speed gearbox with a 4speed block? doesnt it have better initial for street?

That is the very potent combination for city rides. My friends's RX runs with a 4-speed lightly ported with 5-speed GB & 5-speed sproketing, it pops a wheelie even in 2nd gear with a pillion. The 0-100Kmph is really very quick, but that is it then, it doesn't do beyond 105Kmph.

The bike just feels to be always in the power band, we had even once installed an EC & the thing was just flying & even giving a run to my heavily modified 5-speeder. Just couldn't catch the thing in city. But i also have to admit, the port job was spot on.

**yamdoot** · 07-08-2010, 04:33 PM

so, whats the 5 speed sprocket settings? 15/38?

**karthikdattag** · 07-08-2010, 04:56 PM

Originally posted by yamdoot View Post

so, whats the 5 speed sprocket settings? 15/38?

RX135 4-Speed : 16 / 34
RX135 5-Speed : 15 / 38
RXG : 15 / 37
RX100 : 15 / 39

Clutch units are all the same except for RXG.

Since, you had asked about pickup, i would like to share something about top end here with a practical example,

Bike : RX 135 4-Speed
Sproketing : 16 /34
Clutch Unit : RXG Unit
Bore : 4TL00 lightly ported or 4TL10 stock

With this setup, there is a top speed increase of 10Kmph in each gear. Infact in 4th gear it crosses 120Kmph, not very quickly, but quick enough to beat all 150cc 4-T machines & even some stock sub 140cc 2-T machines in straight line. I had this setup running on my 4-speeder back in 2004.

Its always nice to experiment with your bikes. FYI, i had tried this setup on my 5-speeder as well, but the result was disastrous as there was no torque generation at all in 5th gear & my bike was topping 90Kmph in 5th & 115kmph in 4th. There was severe drop in power & torque once shifting to 5th. Hence reverted back to std RX135 clutch assembly.

**MACH50** · 07-08-2010, 10:31 PM

Kartikdattag.............what carburetor did Yamaha RXG use ?????

Does anyone have the details about the specifications and performance of the Yamaha RXG ??
I have seen RXGs since childhood,but never rode any of them.RXGs sound very meek.But my family mech tells me that its pick-up faster than the RX135 4 speed stock !!!!!!

**kb100** · 07-09-2010, 08:52 PM

@mach50; the rxg uses mikuni vm 22,it produced about 11.8 bhp,did not sell in great numbers unlike rx100 ,about your mechs statement i seriously doubt it

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