I have a 2010 Fatboy and really want to replace the speedo with the new model that has the small analog tach on the side (#74774-11). The book says it only works on the 2011 models. Does anyone know why? I can deal with mechanical fit issues but was wondering if there is something on the electrical side that will cause it not to work. I did hear the 11 have a whole new electrical system.

***Update, HD will be selling this type for the pre 11 models in the next few weeks.

 

I was told by the dealer that the '11's have a new computer system and software. I wanted the same thing.

 

Talking to my local dealer, I was told that they moved the memory from the speedo. It is stored on the computer.

 

Great news, HD announced this week that they made this speedo/tach combo for the pre 2011 models and it goes on sale in 2 weeks. If I remember correctly there are like hundreds of different light colors that are selectable through the single speedo

 

woohoo!!!!!! time to change my list.... again!!! i love this tach/speedo but was so bummed to learn it wasnt available for my 2010.

 

Very cool setup! I may have to put that on my wish list once they come out for pre-11 models

 

Will this be a new or different part number?

 

i would assume yes as it will be for 2010 and older.

 

Yes new part number, if you check out your local dealer they should have the info if their regional sales guy is keeping up on things.
It sill has not made the HD website though.

 

Uh, yes it has, check out search for 70900072, it brings you to a page that has all versions of that speedo/tach for the 11's and also for the earlier bikes:

http://www.harley-davidson.com/gma/g...bmLocale=en_US