Reference image; pictured color, equipment and model year may differ from the researched configuration. Confirm the actual machine before purchasing.
2025 · Mountain
Yamaha Sidewinder M-TX LE 153
Research-based model profile$19,999
Read the source notes belowWhat this model is for
M-TX LE 153 is a distinct mountain option for someone deliberately considering a turbo four-stroke rather than a two-stroke. Its twin-rail suspension, 3.00-inch-lug track and 36-inch adjustable stance separate it from the trail SRX. FOX Float QS3 shocks and the QS3L rear climb-lockout feature give the dealer a specific air-shock setup to explain.
Arrange a suspension inspection and setup demonstration before paying for an archived unit, particularly if air-shock service records are incomplete. Check access-trail restrictions for the deep-lug track and obtain an actual loading weight for transport; the online table supplies no number. Compare the whole ownership plan with Freeride or PRO RMK rather than borrowing a horsepower or mass estimate from another Sidewinder.
Consider it if…
- Mountain buyers deliberately considering a turbo four-stroke.
- Shoppers who can verify the specific final-model-year M-TX build.
Understand the compromises
- Actual loading weight must be established independently; the specification table leaves it blank.
- Deep-lug mountain equipment should not be treated as equivalent to a trail track.
Specifications, with context
“Not confirmed” is an evidence gap, not a zero. Weight definitions, optional equipment, track choices and model years can change a comparison.
| Specification | Value | Basis & limitations |
|---|---|---|
| Model year | 2,025 | 2025 explicitly identified by the manufacturer model and specifications pages. |
| Engine | 998 cc turbo four-stroke | 2025 Sidewinder M-TX LE 153, US mountain specification. |
| Displacement | 998 cc | Published engine displacement in cc for the selected engine; marketing engine names are not substituted for displacement. |
| Horsepower | Not confirmed | Not published as an exact output in the consulted model-year specifications; no estimate substituted. |
| Weight | Not confirmed | Generic wet-weight footnote appears, but no numeric weight is populated for this model. |
| Track length | 153" | Manufacturer specification identifies this track length in inches; other track options may exist. |
| Published price (USD) | $19,999 | Historical US MSRP $19,999 plus separate $600 destination; excludes tax, title, preparation and options. |
Equipment to understand
- Twin-rail mountain rear suspension
- FOX Float QS3 shocks
- 15 x 153 x 3.00-inch track
Equipment can be package-specific. Match the listing, order sheet and model-year documentation rather than relying on a shared model-family name.
Questions to take to the seller
- Is the model code and registration genuinely 2025?
- What air-shock setup, inspection and service history is documented?
- What cooling precautions and track limitations apply to access trails?
Use the buying worksheet to compare complete quotes, and the specification guide to check whether the figures use the same basis.
Calculate ownership costs and compare itemized dealer quotes →
Sources & research limits
These references support the notes above to the extent described. A current manufacturer page is not automatically proof of an older model-year specification.
- 2025 M-TX LE 153 specificationExplicit 2025 heading; read 998 cc, 153 x 3.00 track, twin-rail suspension and Float QS3/QS3L.
- 2025 M-TX LE 153 model pageRead $19,999 US MSRP plus $600 destination.
Have model-year documentation that resolves a gap? Send a source correction. For service, recalls or operating limits, use the exact owner’s manual and an authorized dealer.
