Desmo Times High Velocity Fan Kit - 907ie, All 748-996, ST2/3/4/4S - $100 or $110

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The Desmo Times High-Velocity Fan Kit - $100 or $110

Q&A:

1. What is the purpose of this fan kit?

There are two problems with the OEM (original equipment manufacturing) fan setup on Ducatis - First, the shape of the fan is poor. The 6-bladed plastic fan is inefficiently shaped and doesn't pull much air through the radiator. Second, the fan relay comes on much later than I would like. I prefer my fans to come on BEFORE the engine gets to 200-220 degrees F. Optimal operating temperature is 170-185 degrees F. The answer to both problems would be a fan that I could manually control that also moved more air than the OEM fan. I developed this fan/switch setup and have been using it for 5 years on four of my water-cooled Ducatis (748, 916, ST2, 888) and have been installing such kits on customer bikes for several years. Everyone raves about the functionaliy. With my kit you can turn on your cooling fan whenever you wish - at stop lights, when parked, or any time you wish to keep your engine from reaching stratospheric temps.

2. What does the kit provide?

The kit is all inclusive of all parts necessary - including wiring (14 Gauge - more than enough to handle the 4.6 Amps the fan draws and heavier than the existing wiring to the fan), black spiral wiring cover, waterproof wiring connectors, fuselink, zip-ties, carbon finish rocker switch or switch with waterproof cover depending on the variant of your bike, carbon fiber triple tree bracket with stainless bolt/locknut, and 5 bladed high-velocity aluminum fan. The connectors are marine grade shrink-fit connectors. One hole will have to be drilled into the leading edge of the triple tree (superbike and post-2003 ST models) to mount the bracket. The top triple tree doesn't have to be removed to accomplish this, and the carbon bracket makes the switch look OEM. For the ST model, a hole will be drilled in the left fairing inner panel for the switch.

3. Is installation easy?

I'd consider the effort a 2 out of 5 in terms of difficulty (a 1 of 5 is changing the oil). It takes a novice about an hour to install the kit. Complete instructions are included.

4. Are there any downsides to installing the fan kit?

The kit does NOT eliminate the existing relay circuit on the bike. The only potential downside is if you leave the fan on when you turn off the bike. I've never had a customer have this happen, nor have I experienced it. Still, the fan draws as much as the low beam, so leaving the fan on for a period of time without the motor running will drain the battery. The fan makes enough noise to notice it when the engine isn't running.

5. Will the fan kit fit work any water-cooled Ducati?

The fan will work on all water-cooled Desmos with single cooling fans - It will not work on the S4/S4R/S4RS/998/749/999/848/1098 because those models have smaller fans.

6. How cool will the fan keep my bike?

While results differ depending on the bike and the level of engine modification, I can say that none of my bikes have hit 210 degrees -- and I live in one of the hottest climates known to mankind (Florida). By turning on the fan prior to the bike reaching 180 degrees F, I find that I keep engine temps down below 190 degrees F most of the time. Sitting in 90 degree ambient temps with 90 percent humidity, the fan will keep the bike at 200 degrees indefinitely. The fan puts out 2x the airflow compared to the OEM fan. Keeping the bike cooler is particularly useful on 748-998 superbikes to prevent the expansion tank from overpressurizing/superheating and splitting the seam. Those of you that have had leaking expansion tanks can relate.

7. Why does the Superbike Fan kit cost $10 more?

Carbon fiber prices have increased approximately 1000% in the last year. Due to the costs of carbon fiber, I had to charge something for the nice carbon bracket included in the Superbike Kit.