210 replies to this topic

[pulsurge]

Rahul beta, aapne kabhi try kiya...or just looking at the spec sheet you are speculating. The video is there to see and yes its a speedo figure. In fact there are plenty of videos floating on youtube- maybe all are manipulated

Well speedo errors I agree, but how much do you think it'll be?? At least not in the region of 10 kph. So even deducting all the speed suspicion and doubts- you think it can come to 9 seconds true...good enough isn't it?

Here's a phone GPS snapshot (Blackberry using internal satellite receiver and running on GPSpeedometer s'ware) when my CBR was doing 141 kph:

[rahul_rn]

D bhai i dint say manipulated.. but ya in some bikes speedo error is as high as 10-15%

[pulsurge]

I feel 10-15% is very high up the range.

[arn]

Won't work with a GPS as the refresh rate is too slow to get a meaningful result.

[rahul_rn]

pulsurge, on 11 April 2012 - 08:58 PM, said:

I feel 10-15% is very high up the range.

Not necessary, i had seen the current p220 showing 113 when the v-box was reading 100 exact..

[arn]

On the ZMA it is 8% at indicated 100 kph

[rahul_rn]

arn, on 11 April 2012 - 10:41 PM, said:

On the ZMA it is 8% at indicated 100 kph

ZMR has the most precise.. 125.86 (if i am not wrong) was indicated as 126.. now that deserves a , co's should not fake it saying too high numbers.. i.e. with a faulty speedo supporting it..

[pulsurge]

As per Doc 106 on the CBR is 100 on the GPS.

[L.P.]

pulsurge, on 12 April 2012 - 01:17 AM, said:

As per Doc 106 on the CBR is 100 on the GPS.

136 on KTM, shows 133kmph on GPS, Garmin, Army Spec!

This is the GPS

[arn]

^^^ civilian spec

[L.P.]

arn, on 12 April 2012 - 09:32 AM, said:

^^^ civilian spec

Aise mat bolo, please, we bought it when someone told us about it, it didn't leave the signals even in desert storm, after around 70 falls on bike



Deepak's Video was great effort

[arn]

Mine runs even after the bike landed on it after a 10' straight drop, The USB wires were torn loose in the impact. Still runs perfectly but civvy spec all the same.

The military uses different frequencies so they can continue to operate even after shutting the civilian signal. Their satellites.

[Ricci]

Nitin sir, fat chance you'll get military spec GPS for consumer use.

As for speedometer accuracy, it varies even on the same model. I've heard from people about how accurate the ZMR and P220 speedometers are/were, but others have reported closer to usual errors also. My ZMA (not ZMR) seemed to have a pretty accurate speedometer, it matched the tachometer and predicted speed at RPM precisely but even tachometers have some error.
Bottomline - use multiple sources of measurement , and if it confuses you, take the minimum as most reliable !

I still think the laser speed measurement units were the best , GPS units are a cheap and convenient compromise.

[nav75]

pulsurge, on 11 April 2012 - 04:40 PM, said:

Most of the people reporting 0-100 on the CBR as 10 seconds which I seriously had doubts about....managed to try it out myself:

PTR (PowerToRider) guys are claiming 8.5 sec 0-100 speedo indicated for KTM200.

[rahul_rn]

nav75, on 14 April 2012 - 01:58 AM, said:

PTR (PowerToRider) guys are claiming 8.5 sec 0-100 speedo indicated for KTM200.

That's ninja territory...