58 tooth chainring?

[JonnyBlade]

,quote name='gaftaz' timestamp='1313498910' post='1800453']
Well I have GPS proof of 125mph. Next year I shall own Cav on the TdF sprints.
[/quote]

I should ride for Team UK. My Garmin says I have reached 9,800.01 MPH


http://connect.garmin.com/reports

You'll need tocustom the dates to last August

 

[gaz]

Speeds from the garmin are logged via gps but you can cross reference them if you use a cadence sensor. The distance value is recorded by it but not used in the speed calculation.

I've gone + 35mph in the inner ring with plenty left in the tank. I think I could go +40mph from a standing start on the flat if the conditions are right.

 

[Rob3rt]

Speeds from the garmin are logged via gps but you can cross reference them if you use a cadence sensor. The distance value is recorded by it but not used in the speed calculation.

I've gone + 35mph in the inner ring with plenty left in the tank. I think I could go +40mph from a standing start on the flat if the conditions are right.

I'm not sure I understand what you are saying.

My experience suggests that speed is calculated from the rear wheel speed, sit on a turbo and spin with gps turned on, speed will be displayed but no distance information. Unles you turn gps off, then you get speed and distance.

 

[Angelfishsolo]

I'm not sure I understand what you are saying.

My experience suggests that speed is calculated from the rear wheel speed, sit on a turbo and spin with gps turned on, speed will be displayed but no distance information. Unles you turn gps off, then you get speed and distance.

Interesting. Mainly for the fact that rear wheel speed is measure and not front.

 

[iAmiAdam]

Speeds from the garmin are logged via gps but you can cross reference them if you use a cadence sensor. The distance value is recorded by it but not used in the speed calculation.

I've gone + 35mph in the inner ring with plenty left in the tank. I think I could go +40mph from a standing start on the flat if the conditions are right.

What cadence?!

With a 39 T inner ring and 15T rear sprocket, it's 170 RPM cadence.

With a 34 T inner ring and the same sprocket it's 195 RPM.

 

[Rob3rt]

Interesting. Mainly for the fact that rear wheel speed is measure and not front.

Its because the sensor is located on the non-drive side seat stay within scope of crank passing (to log cadence as a crank arm magnet passes) and then a little arm sticking out of it sits near wheel to log wheel magnet. Two measurements with one unit

 

[Wankelschrauben]

@ Jhonnyblade,

I was given a producer for ID and any insurance or other documents I had for it. They examined the bike in the station, I assume they logged it and checked if it was recorded as stolen.

They were actually quite nice.

 

[Angelfishsolo]

Its because the sensor is located on the non-drive side seat stay within scope of crank passing (to log cadence as a crank arm magnet passes) and then a little arm sits near wheel to log wheel magnet. Two measurements with one unit

Very clever. What will they think of next

 

[JonnyBlade]

@ Jhonnyblade,

I was given a producer for ID and any insurance or other documents I had for it. They examined the bike in the station, I assume they logged it and checked if it was recorded as stolen.

They were actually quite nice.

You definitely met the wrong copper that day

 

[Rob3rt]

Very clever. What will they think of next

Wireless interface to the head unit........ oh, it already does that too Just to top it off, if you use an ANT+ power meter it will also interface with the Garmin head unit.

 

[Moderators]

OK. The personal attacks and digs stop now or people will be banned from the thread and/or the thread will be closed.

 

[gaz]

I'm not sure I understand what you are saying.

My experience suggests that speed is calculated from the rear wheel speed, sit on a turbo and spin with gps turned on, speed will be displayed but no distance information. Unles you turn gps off, then you get speed and distance.

Ah yes, I'll have to double check. Garmin don't make this easy eh.

What cadence?!

A very fast cadence. But the way that people have dismissed that +40mph is not possible because they can't do it and pro's can. Must mean I can't spin that fast.

 

[Angelfishsolo]

Wireless interface to the head unit........ oh, it already does that too

I would quite like a form of heads up display built into glasses. Self adjusting tread would be great as well.

 

[JonnyBlade]

He was riding it like he stole it.

Good point !!!!!

What gear was he wearing as a matter of interest?

 

[Angelfishsolo]

You could probably do that yourself if you dismantled the head unit of one of the wireless sensors. Split out the screen, put the unit in your helmet with a small plug to connect the helmet to your sunglasses. The LCD films (LCD and polarizer) are pretty thin.

I will be completely honest. I would like it done by someone who wouldn't risk blinding or electrocuting me