Advertise on Bikeforums.net



User Tag List

Results 1 to 11 of 11
  1. #1
    Senior Member closetbiker's Avatar
    Join Date
    Feb 2003
    Location
    Vancouver, BC
    Posts
    9,596
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    vasaline as contact

    My HRM has been acting up.

    I changed batteries but still, I get readings that aren't right. Too high or too low. Sometimes the display says no input data. The problem is only for small portions of a ride, but I need the accuracy to be right.

    I was thinking of using something like Vaseline for contact instead of water because maybe, the water put on the cheast strap just isn't doing the job.

    Good idea?

  2. #2
    Down 10# and 11 inches Ginny's Avatar
    Join Date
    Jun 2004
    Location
    Denver-ish
    My Bikes
    Jamis, Specialized, CoMotion
    Posts
    224
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    veggie glycerin maybe but not vaseline.
    Only because vaseline is a petrolium product so it's pretty nasty stuff.
    *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
    Ginny in Denver
    05 Specialized Sirrus Comp (Mine)
    04 Jamis Nova Cyclocross (His)
    05 CoMotion Primera Tandem (Ours)

  3. #3
    Killing Rabbits
    Join Date
    Apr 2005
    Posts
    4,618
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Just spit on the contacts.

    Also synthetic fabrics flapping in the wind will produce static and screw with the results. Wear tight fitting jerseys or wet the front of your shirt before riding. Once you are sweating the static won’t be a problem.

  4. #4
    Craig A. Lebowitz lebowitz's Avatar
    Join Date
    Oct 2004
    Location
    Washington, DC
    My Bikes
    1984 Trek 520 | 2002 Specialized Hardrock
    Posts
    372
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    petrol jelly will not work

  5. #5
    You need a new bike supcom's Avatar
    Join Date
    Aug 2002
    Posts
    5,434
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    If you are not getting good readings after riding a few minutes, then the problem is not the electrical contact between the strap and your chest. A few minutes of riding should build up enough sweat (salt water) to make a good connection.

    Why would you think that vaseline would be better? There are conductive gels for HRM straps, but they really should not be necessary.

  6. #6
    Senior Member Jed19's Avatar
    Join Date
    Oct 2004
    Posts
    3,634
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I made a 5% salt/water solution, and it works great. My Sigma HRM starts reading right away without sweat.

    Regards
    Regards,

    Jed

  7. #7
    Senior Member closetbiker's Avatar
    Join Date
    Feb 2003
    Location
    Vancouver, BC
    Posts
    9,596
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I have a Timex and I was think Vaseline might work better because it would stick to the contact rather than what may be happenning now which is the water that I place on it mostly goes away and the readings aren't good untill there is a good sweat happenning.

    Nothing's more frustrating seeing your rate displayed as 240 one second and then 93 the next. That's got to screw up the average.

    I thought about using spit, but I thought that might lead to some rash at the contact from the pores opening up and letting in all that junk that's no doubt swimming about in my mouth.

  8. #8
    Junior Member
    Join Date
    Jan 2005
    Location
    Aurora, CO
    My Bikes
    Raleigh C40, Trek 1000
    Posts
    24
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Do you have a hairy chest? I do and I know that plays havoc with the readings. I'm thinking of shaving!

  9. #9
    Senior Member
    Join Date
    Jul 2004
    Location
    Melbourne
    My Bikes
    Scapin EOS7 sloping, 10v Record, Ksyriums
    Posts
    6,411
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    saliva.

  10. #10
    Slogging along rubic's Avatar
    Join Date
    Feb 2007
    Location
    San Fernando Valley, SoCal
    My Bikes
    Cannondale Synapse '06, Mongoose titanium road bike '00--my commuter. Yes, Mongoose once made a decent ti road bike.
    Posts
    1,084
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Shoulders hunch forward and chest goes concave. Result, HRM loses contact. Tighten up strap and use sweat, salt water or saliva.

  11. #11
    Senior Member closetbiker's Avatar
    Join Date
    Feb 2003
    Location
    Vancouver, BC
    Posts
    9,596
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Tightened up the strap, spit on the transmitter and it seems to be working reliably now.

    No skin issues a the spit points either.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •