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2017 ST 120 / ST 120 LE - Industry-Leading Performance In All Conditions
The Timbersled ST 120 can handle anything your powder-filled imagination can throw at it. The 120" track and 10" Backcountry ski provide uncomprising stability and efficient traction through all snow conditions. The ST is the ultimate do-everything snow bike system.

Features / Specifications / Installation
ST 120 - What's included:  ST track system, 10" Backcountry ski and spindle, new EK X-ring chain, 5' brake line. Requires TSS or Solid Strut Install Fit Kit.
 
ST 120 LE (Limited Edition)
Offered only during pre-season SnowCheck, the ST 120 LE takes suspension plushness and adjustability to a whole new level. Featuring custom valved Fox Zero QS3r coil over shocks, custom colors, and custom graphics; the ST 120 LE is the undisputed king of snow bike suspension. What's included:  ST track system, 10" Backcountry ski and spindle, new EK X-ring chain, 5' brake line. Requires TSS or Solid Strut Install Fit Kit.
 
More Features:

Features

120" X 12.5" CONVEX 2.5 TRACK
The new Convex 2.5 easily outperforms all other designs by increasing efficiency, handling, and reducing weight. The specific “Convex” shape mimics a tire making it easier for trail and hard pack riding.

LONG ARM CONVEX PIVOTING SUSPENSION
The most efficient, best climbing, smoothest riding long travel snow bike suspension on the planet. It also utilizes our Front Flex Arm technology that feels narrower like a tire, and helps keep your bike level as you ride across uneven terrain.

CUSTOM VALVED FOX ZERO PRO SHOCKS
Since 2009 Timbersled has worked tirelessly to develop the only Snow Bike tuned Fox Zero Pro shocks that make your ride just right. They will handle everything from tiny terrain variations to massive drops.

NEW EK X-RING CHAIN
All 2017 Timbersled systems feature the proven EK X-ring chain. Timbersled used EK chain on all 2011-2015 systems with 100% success.

NEW RMK I-BEAM RAILS AND BUMPERS
The new 2017 rails and bumpers are stronger and lighter; thanks to proven RMK technology.

NEW TIMBERSLED SUSPENSION STRUT (TSS) (Optional)
TSS adds 8.5” of additional plush suspension, for a total 20" of travel, and makes the Timbersled feel shorter and more nimble by restoring that dirt bike “pivot” in the rear suspension.

 
 
How It Works
Take your bike from dirt to snow with Timbersled.
Timbersled systems fit a wide range of modern motocross
and off-road dirt bikes
from the early 90’s to today.
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A Timbersled System includes
a front ski and a rear track system that replace the tires
on your bike to allow you
to ride all year.
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Timbersled systems are
universal and require an Install Kit that is motorcycle specific.

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Install your Timbersled system
in less than three hours and
you'll be ready to ride!
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Specifications ST 120

Specifications

Dimensions:     
Estimated Dry Weight - Front (lbs/kg) 18.5 (8.4)  
Estimated Dry Weight - Rear (lbs/kg) 115.0 (52.2)  
Overall Length - pivot to bumper (in./cm.)   63.0 (160.0)  
     
Engine and Drivetrain:     
Chain Slider Standard   
Disc Brake Type Wilwood Hydraulic Single Piston  
Chain Case Chain EK520 SRX2 54 Link (continuous)  
Drive Chain EK520 SRX2 70 Link (master link)  
Drive Shaft Sprocket 17 tooth - splined  
Upper Chain Case Sprocket 17 tooth - splined  
Lower Chain Case Sprocket 17 tooth - splined  
     
Suspension:     
Rear Suspension Non-Pivoting Long Arm  
Front Track Shock FOX® ZERO Pro®  
Rear Track Shock FOX® ZERO Pro®  
Rear Travel - Fixed Fit Kit (in./cm) 12.0 (30.5)  
Ski Type   TS Backcountry - Tri Keel  
Rear Travel - TSS Fit Kit (in./cm) 20.0 (50.8)  
Skag Type   Hemispherical Carborized  
Track Width/Length/Height 12.5 x 120 x 2.5 Convex  
     
Features:     
Storage Mat Standard   
Graphics   Color Matched  
Fuel Can   Accessory (3.5 gal / 13.2 L)  
Install Kit Options Fixed Strut/Suspension Strut  
Integrated Fuel Storage System Standard   
Cargo Storage Accessory  
     
Installation  

Installation

Before You Start:
Your Timbersled Track System comes complete with full instructions that identify fit kit details and other details specific to your bike.
You will need to refer to full instructions when installing your kit.

Bike Tear Down:
  Front
Remove fork guards
Remove speed sensor (if applicable), and front brake system (leave master cylinder on the bars)
Remove front axle and tire

  Rear
Remove the rear master cylinder from the bike frame (leave connected to caliper)
Remove the upper shock bolt
Remove the drive chain
Remove the swing arm axle and remove the entire rear suspension and swing arm assembly (including wheel and brake system)

Spindle Install:
  Utilize supplied fitment chart to install the necessary spacers and reducers to the universal spindle
  Install spindle, using to stock front axle, to lower fork tubes, leave axle loose
  Mount fork clamps to fork tubes and position spindle per detailed instructions
  Tighten front axle and fork clamps
  Install ski onto spindle using supplied hardware

Track System Installation:
  Utilize supplied fitment chart to install the necessary spacers and reducers on to track kit
  Install Fixed Strut or Suspension Strut onto track kit
  Install track kit onto frame utilizing stock swing arm axle (Note: Suspension Strut install will require modifications to stock air box)
  Reinstall upper shock bolt thru Fixed Strut or Suspension Strut
  Install supplied drive chain and tension per instructions
  Route supplied brake line to front brake master cylinder and bleed the brake system