Re: Hero XPulse 200

the gps in question is not the same as the ones you have mentioned , the ones mentioned are exclusively used for mapping speeds ,and even ARAI uses the ssame for measuring the speed, besides there are gps speedometers available for retrofitt, and are extremely accurate in their work, as for the trench showing up as roads the civilian gps has a resolution of a couple of dozens meters variying upto a couple of hundred meters, hence the mentioned error is likely, however for measuring speed the resolution is not necessary the unit just need to be told the relative velocity of the vehicle wrt the satellite,

Re: Hero XPulse 200

Do we have separate ownership thread for other xtreme 200 variants?i wanted to know about xtreme200R.anyone here own one?

Re: Hero XPulse 200

There isn't a dedicated Xtreme 200 thread per se, but you have lots of scoops, first ride impressions on the following threads from different Forum headers.





Hope it helps.

Cheers!
VJ

Re: Hero XPulse 200

This is absolutely misleading piece of false data. Rest, I respect everyone's opinions. Yes, ZMR v1 had an accurate speedo with vbox tests differing by only 3% at top whack.
Now coming to the law bit you just mentioned, if my speedo has say 10% error mandatorily dialled in and I get caught doing 41 kph in a 40 kph zone, I can claim for fraud!

Speedo errors aren't linear. Its not 10% everywhere, across the revs. Error increases in higher gears at higher revs. So, yes top speed tests reveal the true top speeds but most bikes aren't at the max error limits while cruising (speed wise).

Re: Hero XPulse 200

Ok lots of misinformation are being spread alongwith many angry faces and exchanges of words. So let me clear some misconception.

In 2000 the bs2 model splendor came. It didn't had catcon. It only had silencer lengthened to smoothen sound and secondary air injection to confirm to bs3 norms. My joy is from 2001. So it didn't had that catcon.

Regarding Speedo error 10% is not mandatory. It happens due to aging of Speedo and sometimes due to gears used in Speedo. The bs2 splendor and joy I have seen 110 on Speedo. So yes they can do 95+ top speed. But it's when engine is well maintained.

And yes from bs3 onwards hero gave catcon. There is no doubt about that.

The old CBz even though came in 2000 had catcon. But those time 100 cc ones didn't had catcon.

And contrary to popular belief the new once accelerate faster but don't go beyond 92-95.

And regarding Speedo error then the zmr and cbzx from 2011 has 2% Speedo error at top speed.

So it's at 98 when Speedo shows 100.

And regarding cbzx it is the most underrated 150 in India
A well tuned extreme touches almost 118-120 top speed in real.

And the way it reaches is also very fast.

But tuning an extreme is tricky. It should have the correct tappet settings and correct carb tuning. Else it is dud.

Ps- I have a joy from 2001 which has run 4.22 Lacs Kms and an extreme from 2011 which has run 1.10 Lacs km. For those who don't know

Re: Hero XPulse 200

And ya I forgot. Hero engines require 5k engines to get free. There run in is completed at 1000 km. But engines take 5k to perform better. It's because they have very low tolerance in them. And parts are very low wearing. Most engines if maintained perfectly see 1-1.5 Lacs before opening.

Re: Hero XPulse 200

Not always the case, as experience seem to vary depending on the motorcycle being ridden.

In my ZMA and CT100B it is the case that you've mentioned, have confirmed several times with GPS and Sigma cyclocomputer.

Speed Indicated 115~120kmph(Couldn't give exact value due to needle vibration), Cyclocomputer clocked 100kmph



But when it comes to the P220 and Discover 100, the speedo error was always an average of 5kmph, and I mean always and I say average because depending on acceleration and deceleration it would sometimes show 4/6 kmph difference which would level out to the aforementioned 5kmph when ridden at constant speeds.

Speedo Indicated 132kmph, GPS clocked 127kmph



Now the reason why we shouldn't all get so anal about indicated speeds and GPS speeds is merely due to timely deterioration of components, because even though I claim XXX or YYY motorcycle has only 0.005% error there would always be a user case that proves otherwise, and this has always been the case irrespective of motorcycle class as is the way of the world we live in.

Hence screw the finer details and lets get back to clocking miles, speaking of which has your truck crossed the 200k milestone?

The most ideal and consistent means to measure true top speed would be calculate speed with respect to gear ratios at peak power RPM, reason being I weight 100 kg's and you weigh 50 kg's so its a no brainer that with me a P220 would be able to do only 130kmph buy with you for all we know it may even go past 140 kmph, but the one constant remains that irrespective of weight the motorcycle would definitely pull up to peak power RPM, hence he method.

As for cruising speeds, calculate speed at peak torque RPM, as that would be the motorcycles speed(over time) with minimally adequate steady throttle input or rather the speed/rpm where it performs most efficiently, as in practice as well as theory.

Cheers,
A.P.

Re: Hero XPulse 200

True, i experienced it myself. But many people don't believe this fact.

Re: Hero XPulse 200

During the 2016 ISG2G at Ooty, there was a rider(Asfak) who rode in on a CBZ Classic, he had 2.5 Lakhs on the odo and was running on stock internals, then we have our own Parvez who has clocked 1.6 lakhs on his R15 with not even a clutch change, Divya had clocked 1L+ without component change as well IIRC he even changed his chain and sprockets only past the 50k mark.

So all in all, I've come to expect as Sibun has mentioned, it ultimately comes to how you end up using the motorcycle, then again, no right or wrong way, it just depends on peoples requirements, as I know of track/trail enthusiasts who've run down machines in under 25k km's, a fellow xBhpian and close friend of mine had burnt his clutch in under 10k km's, so that's that, all is fair when it comes down to love and war(passion).

Re: Hero XPulse 200

My joy engine as opened first time at 1.3 Lacs km. And that's not because it was smoking. It's because it was loosing some power. And I wanted my bike to run like new.

Extreme is still running with stock internals. Even clutch plate is original.
But once engine was opened because 5th gear was not engaging. So changed the gear drum, shifter fork and rings. That's all.

Re: Hero XPulse 200



refer page no 2 section 5.5 onwards,so i believe im right atleast in this regard or am i wrong

if you get caught doing 41 kmph while your speedo is indicating 40 kmph then indeed you can sue, but getting a verdict in your favor will be an uphill task, besides this i believe happens regularly in cars fitted with larger rims and tyres as upsizes which causes the speedo to under read

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in 2000 when the emission norms were introduced, the splendors exhaust was lengthened inn order to accommodate the catalytic converter, and to accommodate the glass-wool pack at the end of the muffler, the end cap was also modified to a convex flatter design from the earlier concave one, and these were notorious for rusting in the early batches

Re: Hero XPulse 200

Only glass wool with more partition was added. No catalytic converter was added

Re: Hero XPulse 200

In section 5.5 of the concerned document, the accuracy requirements for two-wheeler are mentioned in 5.5.2.2.2 (L type) and 5.5.2.2.3 (L1 type with maximum speed less than 45 km/h and engine less than 50cc/0.5 kW). It shows that speedometer accuracy/error (for the normal bikes we see on road, the L category) can vary between

1. 0 to 12 km/h at a true test speed of 40 km/h
2. 0 to 16 km/h at a true test speed of 80 km/h
3. 0 to 17.6 km/h if your vehicle has a design speed of 120 km/h and testing at 96 km/h and so on.

It is not mentioned that the speedometer must show some error. A manufacturer can either build an accurate one (zero error) or one with positive error (like speedo showing 120 when true speed is 110). Negative error is not permitted as per section 5.5.1. Usually manufacturers stick to a positive error to boast about top speed (and also encouraging riders to stick to a bit lower speed if they look at the speedo).
If someone caught you for speeding: By design the speedometer is showing the true speed or a higher speed. So, if you are doing actual speed of 40 kmph, speedo will show numbers from 40-52 kmph. The reverse logic does not work as the authorities are using external instruments. The only thing you can be sure of is, if speedo is showing 40 kmph, real speed will not more than 40 (holds true for unmodified vehicles with company fitted/recommended tyres). If get caught doing 41, you are doing 41 and the speedo is showing number 41 or higher. If you still feel that is an error, the error is in that external sensor the authority used, not your speedo. This occurs for radars, if a vehicle having larger cross-section in its range is speeding and the police caught you for doing it, that may not be accurate always.

Sharing my opinions; I am not an expert, but interested in technical conversations.

Re: Hero XPulse 200

manufacturers show positive error a means of overcoming liability , these guys build these things by the millions and have to take into consideration the variances in mass manufacturing and the wear and tear on its parts which it will accumulate during its life-cycle , hence they just set it to overread by a fixed margin or so, so basically you are right

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one way to find out

Re: Hero XPulse 200

Saw a black Xpulse (carb) In flesh. And man it has amazing road presence. Happy to see hero launching some good designs.