Welcome to Ecosse mx`s Online Ebay Shop!

We’re Scotland’s No.1 Supplier

Our Shop is Based In Penicuik and is an Aladin’s Cave of

Motocross, Trials & Enduro

Clothing, Spares & Equipment



Kit comprises 

DID ERT3 gold 120 link non oring chain (may well require cutting to length) , renthal alloy rear sprocket and renthal gearbox sprocket

Please state year, model and sprocket sizes required when ordering.

Please note next day delivery is UK mainland only !!!!!


 Fits Kawasaki KX250 1987-2008

Front sizes 1987-1998 13, 14 teeth

1999-2008 13, 14 TEETH


Rear wheel sizes  48,49,50,51 teeth.

 Chain

  • The D.I.D ERT3 chain is the most trusted chain in Supercross and motocross racing because of its reputation of meeting the high quality demands that are required when pushing the limits. It was designed with the intention of making a chain that is optimized for the purpose of racing. D.I.D beefed up the ERT3 chain by increasing the pin size by 3 percent to give the chain an average tensile strength of 8,100 pounds. Increasing the strength of the ERT3 chain did not come with a sacrifice of weight, in fact DID was able to shed 5 percent from the previous ERT chain.
  • Exclusively designed for motorcycle racing.
  • High-performance, lightweight and low friction chain.
  • 3 percent bigger pin diameter and 5 percent lighter than former ERT.
  • Provides the highest wear resistance, tensile strength and impact resistance.
  • Average tensile strength of 8,100 pounds.
  • Wear life index: 430.
  • Rated for up to a 450cc motocross bike.
  • Weight (per 100 links): 2.99 pounds.
  • Includes a clip-style master link.
  • Notes: ERT2 and ERT3 Connecting Links are not interchangeable. Non-sealed chains require more regular maintenance than sealed (O-ring, X-ring) versions and are mainly recommended for off-road use.
  •                              Rear Sprocket
  • Renthal Ultralight rear chainwheels are manufactured to extremley tight tolerances from a special material developed to withstand the rigours of Supercross, Motocross and Enduro.
  • The 7075 T6 aluminium alloy rear chainwheels are 66% lighter than steel, yet incredibly durable.
  • Their advanced tooth profile, concentricity and accuracy of fit provide maximum power transfer and long-life.
  • Renthals combination of a very high strength base material and an exceptionally hardwearing surface result in significantly increased chainwheel life

Front Sprocket

  • When looking to replace your front sprocket, Renthal front sprockets are an easy choice because of their strength and inexpensive price tag.
  • Also known as "chainwheels", Renthal front sprockets are precision manufactured to withstand the rigors of supercross, motocross, and enduro racing.
  • Renthal Front Sprockets are made out of 655M13 nickel-chrome-molybdenum alloy steel.
  • What does that mean to you? Ultimate strength and hardness.


Please state year, model and sprocket sizes required when ordering.




Check Our Ebay Shop for more Options

Please make sure that the item you are buying is suitable this includes Colours and Sizes - ask questions before placing a bid !

Contact us by email or phone if you have any questions.

If you have a problem, please contact us before leaving feedback so we have chance to rectify it.

Happy Bidding!

EcosseMX