Suspension

Use this installation tool from Cogent to be sure that your Cogent Drop-in Dynamic Cartridges are installed correctly. A strong magnet in the end holds the cartridge firmly while you lower it into your fork leg. Then slide the spring over the tool until it holds the DDC down, then gently remove the tool. That simple. Never again question if it is properly seated on the damper rod.

Works equally well for removal when you need to change your fork oil. Also works great with Race Tech Emulators.

These Cogent Drop-in Dynamic Cartridges will vastly improve both the compression and rebound damping of your stock forks. No disassembly of your forks, no drilling of damper rods. Just change the oil to 5w and install the DDCs under the springs and hit the trails.

Stiffer fork springs are required to realize the full benefits of the DDCs. Please call if you have any further questions.

The DDCs are not recommended for use with progressive springs.

The DDC Install/Removal Tool which makes installation that much easier.

High quality fork boots. Sold in Pairs.

Choose from; black, red, royal blue, yellow, or light blue.

Innovative design makes tool easier and more secure to use than old fashioned pin-aligned drivers

• Knurled anodized aluminum locking ring
• Perfectly weighted to drive seals
• Carbon steel body halves

Genuine Yamaha fork seals and dust wipers.

Add a fresh set of inner and outer bushings for a complete fork restore.

Helps protect vulnerable fork tube and seal from dust, dirt, and corrosive elements. Hook & loop (Velcro) fastening on back side makes installation or removal for cleaning a breeze.

Included in this kit are .42 kg/mm fork springs, Cogent DDC (Drop in Damper Cartridge) performance cartridges and two bottles of 5w fork oil.

These springs are custom wound specifically for the XT250. Stiffer than the stock springs, these will make your front perform significantly better. Combine them with the Cogent DDC's and you will be very happy with the results. Sold as pairs .42 kg/mm.

Stock suspension suffers from poor compression damping and limp rebound damping. The Race Tech Gold Valve allows you to tune both compression and rebound valving for vastly improved performance.

• Bolt-on shock valving for serious suspension performance
• Improves control, traction, plushness and bottoming resistance
• Improved, long-wearing, low-friction sealing design decreases fade
• Includes complete instructions

Damping rod forks are notorious for being both too harsh yet too easy to bottom. This is the nature of damping rod fixed orifice forks.

Cartridge Emulators make damping rod style forks perform like well-tuned cartridge forks. These tunable valves sit on top of the damping rods and are held in place by the main springs. This makes them both simple to install and completely tunable for all conditions and rider preferences.

The Modoc 250 replacement rear shock significantly upgrades your Yamaha XT250 suspension. Cogent Dynamics custom build this high quality and high performance shock custom to suit your riding needs.

• Damping rates optimized to your specific needs, giving you the best ride comfort, traction and control.
• Frequency and velocity sensing valving works great over wide ranging conditions.
• Rebound damping adjustability.
• Low internal friction.
• All CNC machined components for top quality and performance.
• Compact and rigid design with internal separator piston.
• Fully serviceable shock is designed for the long haul.

Cogent Dynamics build a fully custom suspension component, just for you. To best meet your needs, please spend a few moments providing us with your riding style (off-road / adventure, or street / commuting) and your approximate weight with gear and luggage in the comments during checkout. The information you provide helps them setup your suspension to most closely meet your needs.

Specifications for the Modoc 250:

• Fits: Yamaha XT250 from the new models introduction in 2013 to present.
• Rebound: Over 30 clicks of adjustability
• Spring Preload: Single threaded collar for ease of adjustability
• Travel: 69 mm
• Overall Length: 320 mm
• Spring rate: Selected per customer requirement
• Spring size: 57mm I.D.
• Gas reservoir: Internal separator piston type

Genuine Yamaha parts to rebuild your shock linkage.

(Generic image, actual parts may vary)

Quality replacement parts for servicing your shock.

• Shock seal head and bushing
• Oil and dust seal
• Shock bumper

Race Tech HP Springs have a high stiffness-to-mass ratio. In other words; the springs are light weight for their particular spring rate. This requires the finest materials and processing. Shot-peened and pre-set so they cannot sack out. All Race Tech HP Springs have the highest rate tolerances in the industry. These are the finest springs in the world-guaranteed.

OEM spring rate is 6.7kg/mm. We offer stiffer spring rates for riders who wish to carry luggage or just prefer stiffer suspension.

Race Tech shock springs require adapter collars which are included with your spring. *Spring color may vary due to specification requirement and availability.

Everything you need to get you back out on the trail.

• Repair kit includes all the bearings, seals, shafts and spacers required for a complete rebuild
• Constructed from OEM-quality components