Hi Guys,
A few weeks ago i unvested in a polar S725 HRM and Power kit. I carried out the install following the guide and pictures on polar USA and from some of the links suggested by other members of this forum.
Generally the system is working but I am seeing large variability accross the gears. So a couple of questions for those of you that have systems installed correctly to try and debug the system.
1) In a small rear cog and a small front cog is the chain parallel to the power meter when viewed from the side.
2) In a large rear cog and a small front ring is the chain parallel to the inside edge of the power sensor when viewed from the top.
3) In a small rear cog and a large front cog is the chain parallel to the outide of the power sensor when viewed from the top.
4) What range of gears are you using I am running 49:53 and 12:23 on a 9 speed Ultegra setup.
5) My bike is fairly small and has a traditional steel geometry. I cant get the centre of the power meter exactly midway between the BB and rear skewer as it clashes with the frant mech. What type of error will this introduce.
I assume this will introduce a DC power error
6) I mounted the power sensor on the chainstay using a moulding compound that sets hard to enable me to get a flat surface on the chainstay. Is anyone else using a hard mount or are most people using the rubber pads supplied.
If anyone thinks that they can help I would appreciate any advice just PM and I can discuss this directly. I would also appreciate other any pictures of known working installations.
Cheers Phil
A few weeks ago i unvested in a polar S725 HRM and Power kit. I carried out the install following the guide and pictures on polar USA and from some of the links suggested by other members of this forum.
Generally the system is working but I am seeing large variability accross the gears. So a couple of questions for those of you that have systems installed correctly to try and debug the system.
1) In a small rear cog and a small front cog is the chain parallel to the power meter when viewed from the side.
2) In a large rear cog and a small front ring is the chain parallel to the inside edge of the power sensor when viewed from the top.
3) In a small rear cog and a large front cog is the chain parallel to the outide of the power sensor when viewed from the top.
4) What range of gears are you using I am running 49:53 and 12:23 on a 9 speed Ultegra setup.
5) My bike is fairly small and has a traditional steel geometry. I cant get the centre of the power meter exactly midway between the BB and rear skewer as it clashes with the frant mech. What type of error will this introduce.
I assume this will introduce a DC power error
6) I mounted the power sensor on the chainstay using a moulding compound that sets hard to enable me to get a flat surface on the chainstay. Is anyone else using a hard mount or are most people using the rubber pads supplied.
If anyone thinks that they can help I would appreciate any advice just PM and I can discuss this directly. I would also appreciate other any pictures of known working installations.
Cheers Phil