Im giving these a try on my TE300, saw them on Noah Kepple's practice bike. I think its a good bullet proof mod, especially with my preference for open ended flag type handguards View: https://www.youtube.com/watch?v=UnUPrJaDIgo
I have them on my 310 and no guards. Been down a couple of times and they work well. Perfectly rigid in use and comfortable. I was going to get some replacement levers to carry but the ARCs came with a Tinken a couple of years ago.
Looks like a good product .... Maybe if I ever actually receive any true retirement money, I'll splurge some on something like this ....
Noah the kid swears by them, he is recent member of the small club of guys who have qualified for an endurocross main event in the pro class.