Triumph has issued a stop-ride recall for every 2025 and 2026 TF450 off-road model sold in the United States and Canada. The US Consumer Product Safety Commission announced the recall on September 10, 2026, covering approximately 1,560 motorcycles in America and another 171 in Canada.
The problem traces to the engine rocker arm, which can seize or stick during operation. That friction can force the exhaust valves to stay open or snap entirely, causing a sudden loss of engine performance or a full stall mid-ride.
Triumph America has logged 12 reports of the issue as of September 10. One rider suffered a broken bone in a crash linked to the defect.
What the Fix Requires
This is not a firmware update or a bolt-torque adjustment. Dealers will remove the entire cylinder head from every affected bike and install a replacement assembly at no cost to the owner.
All four TF450 variants are included: the TF450-C cross-country, TF450-E enduro, TF450-X motocross, and TF450-RC Edition. The TF250 models are not part of the recall.
Owners can check their VIN through Triumph’s recall lookup tool on the company website. US riders can call Triumph toll-free at 1-888-284-6288, while Canadian owners should contact Triumph at 1-678-854-2010.
What This Means for Triumph’s Dirt Program
Triumph launched its TF off-road lineup in 2025, marking the brand’s first serious dirt bike effort in decades. A recall spanning every 450-class model across two model years points to a manufacturing or design flaw that reached production before quality control caught it.
The silver lining is that Triumph is replacing whole cylinder heads rather than attempting a partial field fix. That approach should eliminate the friction problem at its root instead of patching around it.
For a brand still trying to earn credibility among KTM and Husqvarna loyalists, a recall this broad is not ideal timing. But the full cylinder head replacement shows Triumph is willing to absorb the cost rather than cut corners on the remedy.
If you own a TF450, park it until your dealer has the replacement parts ready. The repair is free, and riding one of these bikes right now carries a real chance of an unexpected stall.
Source: RideApart, Motorcycle.com
