These CRF triple clamps have been completely redesigned in 2017. They fit both the previous 48mm and the new 49mm KYB forks. Riders with pre 2017 models will gain the benefits Honda put into the stock 2017 triple clamps, plus the following.

Riders with 2017 models will 1) gain a more comfortable bar position 5mm lower and 3mm forward; 2) Weight savings is 5 oz lighter than stock; 3) Not only are they made from 2024 Aluminum which is the same alloy the factory teams use but the whole area where the bottom clamp wraps around the forks has been designed to flex and work with the front suspension. 4) Ride Eng. have three offsets to choose from to customize the handling of your bike. 22mm Offset recommended for Motocross (MX); World Off-road Championship Series (WORCS) & Desert Racing (DR) (stock offset for 48mm forks is 20mm, for 49mm forks is 22).

Test riders switching from 20mm offset said "it calms down the nervous front end making it better in ruts and on rough, loose terrain". 

Usually compatible with aftermarket stabilizers, call the manufacturer to confirm.