The speedo is disabled with an HRC card. The wire-splice is a "hack" to get the card to function with a street wiring harness.

As with virtually all hacks, there is a level of compromise and reduced functionality, and with the MC28 you will lose the neutral/oil level/side-stand warning lights and the speedo.... everything you don't need on a race bike, and wouldn't have with a genuine HRC harness! You get to keep the lights, indicators (turn signals) and horn, and should happily consider that a bonus, or you are pretty much stuck with 40hp! Sure, it's possible to squeeze a little more out of one, but nothing worth writing home about, and certainly nothing near the 60hp of a derestricted NSR.

The wire-splice, just like an HRC harness, doesn't care if you fit an 010, 020, or 030 card. It's just a wiring harness! The "key" information (pardon the pun) is coded between each card and the PGM-IV.

As the old saying goes, "performance costs!". In the case of the MC28, it costs both financially and [some] functionality.
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Andy.
NSR-WORLD.COM

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