I miss my Flightdeck computer

[hartmmike]

14 years of flawless performance, but Shimano discontinued it. Now I've got a new Lynskey with a cat eye madrone plus that quits working over. 10mph and would like to know why. Any ideas?

[R3awak3n]

why not get another one

https://www.ebay.com/itm/Shimano-Flight-Deck-SC-6502-Computer-NEW-never-used/233219293250?epid=1400020367&hash=item364cf40042:g:2-EAAOSwy7lc0LfU

[hartmmike]

I would love to,but the control buttons are integrated in the hoods and it only is for 9 and 10 speeds because it also tells you what cog you're on. My new bike has an 11 speed cassette. On the Padrone I think the pickup isn't working.
Mike

[PaMtbRider]

The modern version of the flightdeck would be a Di2 drive train paired bluetooth to a Garmin. This would give you all the functionality of a flightdeck, albeit at a much higher price.

[echappist]

the alternative is this (it works with road set-up as well). The SC-MT800 displays the gear you are using and it doubles as Junction A

https://cdnmos-bikeradar.global.ssl.fastly.net/images/bikes-and-gear/components/groupsets/groupset-mountain/shimano-xt-di2-display-1478910006573-cpqbp4iaq9np-630-354.jpg

[oliver1850]

I don't know the first thing about them but I think I have one in a box somewhere. If you are wanting one PM or email me. It will take me some time to find it.

[Mark McM]

14 years of flawless performance, but Shimano discontinued it. Now I've got a new Lynskey with a cat eye madrone plus that quits working over. 10mph and would like to know why. Any ideas?

Most computers of this type use a reed relay in the speed sensor - as the magnet goes past, pulls on a small steel wire toward an electrical contact to complete a circuit.* The faster the wheel moves, the less time the reed relay has to react. If the sensor can detect low speeds but can't detect high speeds, my guess would be that the relay has become gummed up and can't move as fast, or the contact have gotten dirty and need a longer contact time to make a good circuit. In either case, the problem is more likely in the sensor than the computer, so I'd see if the sensor can be replaced.


*On most of the sensors, if you listen carefully you can actually hear a "tick" sound each time the magnet goes past, as the relay closes and opens.