This is NOT a complete snowmobile. 
*Additional material required listed down below
 
This is a conversion kit bring you the absolute best out of your toy RC snowmobile and will allow you to do thing never done before!  This bundle is easy to install and will set you up nicely for your upgrades. 
 
This is a bundle that comes with the following :
The herringbone transmission assembly, with spare gears
Complete skid in 155'' length equivalent with ajustable track tensionner (except for the shorter M7)
40 Pieces of tracks & track rods.  (Available in deep snow, hybrid, or drag racing variables)
Single piece drivers, top wheels & twin rear idlers  
Complete steering assembly with custom servo holder, servo horns, spindles, and a-arms.
Other bits and bobs to make the assembly a breeze!
 
Skidoo XM Specific, now includes the plastic tunnel!
 
Options : 
 
SKID
 
Bomber skid
The Bomber Skid is made of both Polymax™. The most impact resistant PLA by Polymaker™, and TPU, a very durable form of elastic polymer, or elastomer. that cannot break or snap.
It can handle the most demanding situations (jumps & stunts) a lot better that the lightweight skid.
 
Lightweight skid
Simply the best when the snow is the deepest, and every gram counts.  This variant is, on average, 35% lighter than the Bomber skid! But dont let that fool you, this is still a really strong skid assembly!
 
 
 
TRACKS
*Now all made of Polymax™. The most impact resistant PLA by Polymaker™
and also includes track wires.
 
Deep snow track
Optimized for the most amount of performance in the deepest snow conditions, where flotation and traction is the key to success.  
 
Hybrid track
Jack of all trades. Good in deep snow, low snow conditions and slightly crusty snow.  The unique pattern of the track is highly optimized for going fast, maintaining traction and tracking straight when decelerating.  The best for beginner riders.
 
Drag track
The best track option for drag racing on hard, slippery surfaces like ice and similar firm surfaces.  It's lightweight-ness is the key when high speed and maximum traction on hard surfaces is the only objective. 
For optimal performance, install m2*8mm self tapping screws in the track. (not included, but can be upon request)
 
 
 
 
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Stuff needed to complete this kit.
Base model (toy) snowmobile
Hardware : a 3mm rod (allu or brass), a 6mm rod (30mm long)
Four 1/8 colars
A bunch of Stainless machine screws (M2 & M3) & washers
Two 6x13x5 bearings and two (12x18x4) (units are mm). 
A 56t spur gear and a 14-20t pinion gear from Traxxas. (look for Traxxas #3957) 
One set of (Traxxas 2742) Rod Ends (Polaris and doo only)
A bit of super glue
Shocks:  two 60-78mm shocks for the front suspension, one 55-60mm for the middle, and one 70-80 mm for the rear.
(For Polaris only) A thin sheet of steel or aluminium bent and cut for the tunnel. Dimensions in the video...(My tunnel was roughly 0.025'' in thick but It could be closer to 0.050'' for more durability. 
Electronics,
Any 80A or more 1/10 brushless combo,
A 1/10 metal gear steering servo (40x40x20mm servo) **Mini servo for the Yamaha (ex: MG90S)
A 2.4gHz 2 channel radio.
A 3s 2200 mAh Li-po and charger.
 
That's about it really :)
 
*Items on the website are non refundable once shipped