Aldi Computer Bikemate MCP 30102

breszh
breszh Posts: 185
edited May 2008 in Commuting chat
Evening All,

Just wondered if anyone else had bought one of these?

I'm having trouble setting the correct wheel size when the computer is set to MPH. The wheels are 26x2.1 which in MPH would be 1325, but when you set the first digit to 1, the second digit cannot be changed from 9, so 1925 is the closest.

Am I being really think and missing something obvious?

Cheers

Mike

Comments

  • omegas
    omegas Posts: 970
    Have had the same problem with mine and have had to leave it in kmh
  • rrsodl
    rrsodl Posts: 486
    omegas wrote:
    Have had the same problem with mine and have had to leave it in kmh

    Same here but it doesn't bother me. km or ml feels the same when you riding :lol:


    Rick
  • anweledig
    anweledig Posts: 21
    Hi

    I bought one of these earlier today and had the same problem. I managed to get the setting I wanted in (my wheels are 700x35) using miles by a bit of a fiddle. I haven't been able to test whether the calibration is now correct but will be checking the mileage covered over the next day or so.

    First I set the miles/km to km.
    Second I put in the setting I wanted (1366) as 2366 - it works in km
    Then I went back in and set the system back to miles
    Finally I changed the first digit of the distance to a 1 making it 1366 and then pressed the set button to get out of settings - I didn't press the M-1 button to move on to the next digit as this would set it to 9 again.

    Subsequent checks showed that the computer was now set up for miles and 1366 wheel size

    hope this helps

    anweledig
    exercise.png
  • omegas
    omegas Posts: 970
    Yes thanks to ANWELEDIG followed your instructions and now have MPH and the correct wheel size.
  • Rezillo
    Rezillo Posts: 95
    omegas wrote:
    Yes thanks to ANWELEDIG followed your instructions and now have MPH and the correct wheel size.

    Same here but when it came to using it, the speed and distance were way out! It seems you just set it up using the wheelsize from the km column of the table.

    I emailed the service section and got this reply:
    Very honoured user,

    please follow with the MCP30102 two points:

    1. You can use the MCP30102 only from a bicycle size of 1945 mms up to 2999 mms.. The device is not admitted for smaller bicycle dimensions (for example children's bicycles).
    With very small bicycle dimensions you can put down the double bicycle size, then nevertheless, all measuring values must be halved.

    2. The setting of the bicycle size lets plan only if the setting KM/H is preset. Carry then the value standing in the table under WS/Kmh (WS = Diameter of the wheel x 3,14).

    After you've done that, you change back the value km/h to mph.

    We hope, this information was helpfull for you.
    We ask for understanding and wish a lot of fun with your new bicycle computer.

    I set everything up using km then afterwards changed km to miles. The wheelsize still looks wrong when using the table supplied but it seems to work fine. I'm guessing the table for wheelsizes for mph is superfluous.

    John
  • anweledig
    anweledig Posts: 21
    Yeah - I've done a bit more checking today and found that while the method I used does allow the correct value to be entered when I checked the distance/speed against my gps it was way out. As suggested putting in the mm size while in km and then setting to miles seems to overcome it although the distance is still crazy - it does indeed seem that the miles table is pointless. When I checked I found that instead of setting to 2155mm I needed to set to 2045 for my wheel size to get near to the correct measurements.

    Even then there was about a 2% variance compared to the gps (which may be down to a range of factors - accuracy of the gps, position of the sensor, and some variance seems to occur with speed - at higher speeds there seems to be more variability). I'd be interested to see how others get on.

    All that said though, it is still a bargain at the aldi price.

    cheers

    Anweledig
    exercise.png
  • jra
    jra Posts: 1
    Rezillo wrote:
    omegas wrote:
    Yes thanks to ANWELEDIG followed your instructions and now have MPH and the correct wheel size.

    Same here but when it came to using it, the speed and distance were way out! It seems you just set it up using the wheelsize from the km column of the table.

    I emailed the service section and got this reply:
    Very honoured user,

    please follow with the MCP30102 two points:

    1. You can use the MCP30102 only from a bicycle size of 1945 mms up to 2999 mms.. The device is not admitted for smaller bicycle dimensions (for example children's bicycles).
    With very small bicycle dimensions you can put down the double bicycle size, then nevertheless, all measuring values must be halved.

    2. The setting of the bicycle size lets plan only if the setting KM/H is preset. Carry then the value standing in the table under WS/Kmh (WS = Diameter of the wheel x 3,14).

    After you've done that, you change back the value km/h to mph.

    We hope, this information was helpfull for you.
    We ask for understanding and wish a lot of fun with your new bicycle computer.

    I set everything up using km then afterwards changed km to miles. The wheelsize still looks wrong when using the table supplied but it seems to work fine. I'm guessing the table for wheelsizes for mph is superfluous.

    John

    Hello I'm new thanks to this gadget!
    I don't understand that email but did it solve the problem?

    I didn't get it for a bike by the way, I have it fitted to a 1937 MG.