I have a 05 as well. It is a low-end torque and horsepower availability problem, based on moderate startup RPM’s. As stated in other replies, the LT is set-up to respond to higher RPM’s. As I do a lot of two-up riding I already had the following done
I installed a Remus Titanium exhaust system, with the street
canister. This improves low-end torque and provides some additional HP to get you moving. The alternative sport
canister provides more torque/HP on the upper end of the powerband. The added benefits: You lose the catalytic unit on the exhaust system, which is quite heavy. Less weight is obviously better. It also makes changing the transmission oil very easy.
Having recently acquired a Uni-go, I am in the process of doing the following:
My LT is at the BMW Dealer right now having the “Rhinewest Performance” 05 Cam Gear set installed to improve the mid-range in both torque and HP. It basically provides the power curve earlier and squeezes more torque and HP out of the LT within the mid-range of the power band. You can see both the Cam Gear set and performance graph here: http://www.rhinewestperformance.com/K1200LT.htm.
When I talked to Rhinewest last week I was told that with both the Remus and their cam set I would definitely see a very noticeable improvement in performance. I was already told by the BMW mechanics how impressed they were with a cam gear install they had just recently completed on another LT.
I am also having the Dealer research if there is a “ceramic’ clutch plate available to improve what I feel is the one significant weak link in the LT’s power delivery, a dry clutch. The more aggressive you are with the clutch the sooner you will need to replace it. Especially with two-up riding and pulling a trailer. You are more likely to wear out the engine before wearing out a ceramic clutch. Pretty much standard in most racing set-ups. The service guys are pretty sure there is one so I have my fingers crossed.
With this set-up, I really hope I can ride it like I stole it!!!!!!!!!!!!
May we never find the end of the road!