leaking RWS plug-in
Posted: Sat Sep 24, 2011 3:47 am
For a long time I've consistently obtained much lower numbers when using my iBike on my TT bike with RWS in contrast to on the road bike. On the TT bike, the iBike and RWS are all mounted on the aero bar - see photo (red elastic band to keep RWS plugged into iBike). RWS does not get in the way of my hands or arms.
Consistently, I get much lower numbers on my TT bike. EG, my FTP = 287, and on a recent very hard TT I managed a NP of 226 (yet I know I worked hard - I came 2nd in the State championships ). I've redone the calibation rides a number of times, and recent numbers are:
Aero: 0.197
wind scaling: 0.811
CdA: 0.243
Fric: 4.751
Tilt: -0.1
Crr: 0.0055
Cal weight: 163
I weigh 144lb, 5'11" tall.
Whilst riding, when going uphill, the power output on my TT bike seems more like what I'd anticipate .
After a major examination of the iBike and the RWS, I notice that the RWS seems to leak air when I blow into it. The plug into the iBike is different from an unused plug - see photo - new plug is the one on the left.
Could this be the problem?
I'd be grateful for any comments, or advice. Thanks !
STEVEN
Consistently, I get much lower numbers on my TT bike. EG, my FTP = 287, and on a recent very hard TT I managed a NP of 226 (yet I know I worked hard - I came 2nd in the State championships ). I've redone the calibation rides a number of times, and recent numbers are:
Aero: 0.197
wind scaling: 0.811
CdA: 0.243
Fric: 4.751
Tilt: -0.1
Crr: 0.0055
Cal weight: 163
I weigh 144lb, 5'11" tall.
Whilst riding, when going uphill, the power output on my TT bike seems more like what I'd anticipate .
After a major examination of the iBike and the RWS, I notice that the RWS seems to leak air when I blow into it. The plug into the iBike is different from an unused plug - see photo - new plug is the one on the left.
Could this be the problem?
I'd be grateful for any comments, or advice. Thanks !
STEVEN