theyre also lite. likely the main reason theyre on a ton of drag bikes. I looked into fox and it didn't appear they made any extra lengths other than standard, atleast not that I could find on their site. elka, ohlins and others that are similar are not a good choice when your trying to shave every ounce you can. sure they may have more advanced adjustability but who gives a horses ass when theyre adding 10 lbs. its a shame there isn't a true drag race suspension out there. I just don't think the demand is there for any company to take interest. I wonder what the fox system weighs compared to shaws ?