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Change is GoodFor 2010 the MXZ 550F has moved from the old REV platform to the new XP platform. The "x" sled moniker was dropped this year as well, and the 2010 550 fan gets the TNT badge. This all new white, red, and black sled looks as light as it is. The 550x sled was always popular with the price-conscious high-performance sport crowd and now it's been taken to the next level. Thankfully pricing has stayed relatively modest too.
Transmission changes were made on the 550 for 2010, and the Bombardier Lite drive clutch was replaced with the tried and true Ski-Doo TRA. Mated to that is the LPV VSA driven clutch. For a 550 fan this sled looks like it can get up and move, but that's not where this light machine gets the most notice.
This is possibly the easiest sled of all the sleds in this group to maneuver on tight trails. Steering effort is minimal, thanks to a new steering ratio, and the rider position is very relaxed. Helping with this sled's easy feel is the HPG Plus Kayaba rebuildable gas shocks up front. HPG plus shocks also were used in the
SC-5 rear suspension. The 550F comes with the full 1.25-inch lugged, single-ply, track too, so it's light AND really bites.
Compared to last year's REV-based sled, the new 550F TNT in the XP, or REV-X chassis, has its engine mounted .86 inches lower in the engine module. A lower center of mass helps keep the sled glued to the trails.
In addition, changes to the bulkhead to accommodate the fan engine and changes to the tunnel were made. Since the fan-cooled sled does not need the heat exchanger along the tunnel, a new extruded structural aluminum spine is used.
All accessories, and seats match easily with the sled and underneath there is plenty of clearance for studs. Furthermore, the front tunnel close off was changed, and again there's no plumbing needed because the sled is not liquid cooled. Finally, the suspension module just in front of the engine has a notch in it to accommodate the center exit exhaust pipe.
You can monitor vitals on this sled through an easy-to-read and use analog multi-function gauge pod. We also like that this runs on good old 87-octane gas as well. Finally, we like that this unit comes in at less than $7,000, and if you add electric start it's still just $7,299. That's a smokin' hot deal!