TM Racing MX

Brake fluid capacity & service interval

TM Racing MX models require brake fluid with capacities ranging between the minimum and maximum values. Service intervals consist of 12 months or 3 races. The data covers 8 configurations.

The configuration chart below lists fill volumes and service intervals for each engine and trim variant.

TypeSpecifications
100 MX (2010- )
  • Use: Normal
  • Between min and max.
  • Change 12 months
100 MX (2010- )
  • Use: Competition
  • Between min and max.
  • Change 3 races
125 MX (2010- )
  • Use: Normal
  • Between min and max.
  • Change 3 races
144 MX (2010- )
  • Use: Normal
  • Between min and max.
  • Change 3 races
250 MX (2T) (2010- )
  • Use: Normal
  • Between min and max.
  • Change 3 races
300 MX (2010- )
  • Use: Normal
  • Between min and max.
  • Change 3 races
85 MX (2010- )
  • Use: Normal
  • Between min and max.
  • Change 12 months
85 MX (2010- )
  • Use: Competition
  • Between min and max.
  • Change 3 races

Additional Notes

  • Brake fluid level across all TM Racing MX variants listed from 2010 is specified as "between min and max," referring to the reservoir's minimum and maximum markings rather than a fixed volume. This fill method is standard for hydraulic brake systems, where the correct level is verified visually rather than by measuring a precise quantity.
  • The TM Racing 125 MX, 144 MX, 250 MX (2T), and 300 MX all share a brake fluid change interval of every 3 races under normal use conditions. Applying a race-count interval rather than a calendar period reflects the high thermal and mechanical stress placed on brake fluid during off-road competition riding.
  • The TM Racing 100 MX carries two distinct change intervals depending on use condition. Under normal use, the interval is 12 months, while under competition use, fluid replacement is specified every 3 races. The same dual-interval structure applies to the 85 MX, which also lists 12 months for normal use and 3 races for competition use.
  • Brake fluid degrades through moisture absorption over time, which lowers its boiling point. The 12-month calendar interval specified for the 100 MX and 85 MX under normal use addresses this time-based degradation when race frequency is low or irregular.
  • The 3-race competition interval specified for the 100 MX and 85 MX reflects that repeated high-load braking events accelerate fluid breakdown more rapidly than elapsed time alone, making race count a more relevant measure of service need in those conditions.
  • The 250 MX (2T) designation identifies a two-stroke engine configuration. Despite the difference in engine type compared to other displacement variants in the lineup, the brake fluid specification remains consistent at a 3-race change interval under normal use.

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