Running Track Bike without Fan

[Mito]

Hey Folks, I'm in the process of re assembling my XB12 track bike that I got as a bit of a wreck a couple of years ago. I have removed all of the bits not needed for a race bike like charging system, starter (will use pit rollers), lights and extraneous road gear. I need to make a decision about keeping the cooling fan or not. The ignition will come from a total loss battery so wanting to keep the electrical load low. I won't be using the sub frame under shield so air flow through the frame will be good. Has anyone had experience of going fan less?. Cheers, Stu

 

[Cooter]

Weight matters, but much, much, less in a torqu-ey bike. The fan weighs less than if you skipped breakfast, but since you've already gutted the crap out of it...

Contrary opinion, but fact: The fan is only effective under 25mph or less.

So when you get off track, go straight to your pits. Put on a large RSS (right side scoop), datalog your temps and choose your oil weight accordingly.

 

[outthere]

Removed my fan long ago. No issues so far.

 

[Mito]

Cheers Cooter, pretty much what I was thinking. Weight was not really the focus.......my weight is though. I trimmed 12kg out by not using the charging system, starter and battery. Where I hope to get gains is less rotating mass so easier to spin up. It's a fun bike so enjoying the tinkering.

 

[Kurlon]

While you're chasing rotating mass, Evolution Industries makes aluminum replacements for the front primary sprocket and front belt pulley (if you're not already chain drive). If you're still belt, you can get a lighter rear pulley out of France.