Windblox - Lexan Windscreen for Mercedes SLK R172 Fits Mercedes SLK 172 Platform: 2011-Now. This Wind Deflector covers all Mercedes SLK 172 platforms: Mercedes SLK 250 CDI 2011-Now, SLK 55 2011-Now This is the number one rated SLK R172 Wind Deflector by Wind DeflectorReview.net. Maximum wind blockage. Prevent noise and turbulence in the cockpit when driving top-down; causes no glare Warranted for life plus 30 day trial period (free shipping back from US addresses). Wind Deflector never causes abrasion against your Windblox - Lexan Wind Deflector for Mercedes SLK R172. Made for speed, this Wind Deflector for Mercedes SLK R172 Wind Deflector is rated for usage up to 150 MPH.