Drive Chain and Sprocket Wear Inspection

Drive Chain - Maintenance Warning

warning
Replacement drive chains must be installed by a competent person with the specialist knowledge and technical understanding of motorcycles, such as an authorised Triumph dealer.We recommend to always replace worn or damaged chains using genuine Triumph parts.Incorrectly installed drive chains may result in a broken drive chain or may cause the drive chain to jump off the sprockets, leading to loss of motorcycle control which could result in serious injury or death.

Notice Drive Chain - Worn Sprockets

notice
If the sprockets are found to be worn, always replace the sprockets and drive chain together.Replacing worn sprockets without also replacing the drive chain will lead to premature wear of the new sprockets.

Perform the following operations

Perform the following operations:

L series chain guard removal SM only

Drive chain damage and wear inspections

Drive Chain Damage Inspection

    warning
    If the drive chain is found to have damaged rollers, loose pins or stiff links, the drive chain must be replaced.Do not attempt to loosen any stiff links. The stiff link may have damaged or worn components.Riding with drive chain stiff links, or loosened stiff links, may result in a broken drive chain or may cause the drive chain to jump off the sprockets, leading to loss of motorcycle control which could result in serious injury or death.
  1. Rotate the rear wheel and inspect the drive chain for damaged rollers, loose pins and stiff links.
    2. Stiff link

    1. Stiff link

  2. If the drive chain has any damaged rollers, loose pins or stiff links, the drive chain must be replaced by a competent person with the specialist knowledge and technical understanding of motorcycles, such as an authorised Triumph dealer.

Drive Chain Wear Inspection

  1. Stretch the drive chain taut by hanging a 10 - 20 kg (20 - 40 lb) weight on the drive chain.
    2. Drive chain measurement

    1. Measure across 20 links

    2. Weight

  2. Measure the length of 20 links on the straight part of the drive chain from pin centre of the 1st pin to the pin centre of the 21st pin. Since the drive chain may wear unevenly, take measurements in several places.
  3. If the length exceeds the maximum service limit, the drive chain must be replaced. Refer to the Specifications section for the maximum service limit.

Sprockets Wear Inspection

    notice
    The illustration shows wear on sprockets mounted on the left hand side of the motorcycle. For sprockets mounted on the right hand side of the motorcycle, the wear is on the opposite side of the tooth.
  1. Rotate the rear wheel and inspect the sprockets for unevenly or excessively worn or damaged teeth.
    2. Chain and Sprocket Wear
  2. If there is any wear or damage, the drive chain and the sprockets must be replaced by a competent person with the specialist knowledge and technical understanding of motorcycles, such as an authorised Triumph dealer.

Perform the following operations

Perform the following operations:

L series chain guard install SM only