Image: Property of Triumph Motorcycles
Triumph's entry into the dirt bike market has hit a significant snag. The entire TF 450 lineup is being recalled because of a cylinder head issue that can cause the engine to stall while riding, potentially leading to a crash. The fix is not a quick patch; it requires a complete cylinder head replacement at an authorized dealership.
If you own one of the affected bikes, here is what you need to know.
Four models are included in the recall:
| Model | Year | Type |
|---|---|---|
| TF 450-C | 2026 | Cross Country |
| TF 450-E | 2026 | Enduro |
| TF 450-X | 2026 | Motocross |
| TF 450-RC Edition | 2025 | Ricky Carmichael Signature |
According to the recall notice posted on Transport Canada and confirmed by Triumph USA, the issue is in the rocker arm assembly inside the cylinder head. The assembly can experience excessive friction, well outside of tolerance. This can lead to either a gradual reduction in engine power or a sudden loss of power.
"On certain motorcycles, a problem inside the engine could cause it to stall while riding. A sudden loss of engine power could increase the risk of a crash."
Source: Transport Canada recall notice, reposted by Triumph USA
A sudden engine stall on a dirt bike is dangerous. If the engine locks up mid-corner or during a jump approach, the rider can lose control. This is why Triumph is not taking chances with a patch or adjustment; the entire cylinder head needs to be replaced.
If you own one of the affected models, here are the steps:
Given that this requires a full cylinder head replacement, expect the repair to take longer than a typical recall fix. Parts availability and shop scheduling will determine the timeline. Ask your dealer for an estimated completion date when you book the appointment.
Triumph entered the dirt bike market recently, launching both 250 and 450 platforms to compete with established players like KTM, Husqvarna, and Yamaha. The TF 450 lineup has been generating real buzz, with the TF 450-E delivering 57.8 HP and 35.6 lb-ft of torque from its 450cc single-cylinder engine.
A recall this early in a product line's life is not unusual for a new platform, but it is not great news for Triumph's momentum. The TF 450-RC Edition, designed with input from Ricky Carmichael, was supposed to be the flagship motocrosser. Having it require a cylinder head replacement before its first full season is a setback.
That said, Triumph is doing the right thing by issuing the recall proactively rather than waiting for incident reports. A cylinder head replacement is a major repair, but it is better than the alternative of bikes failing on the track.
For Canadian off-road riders, this recall follows a string of recent motorcycle recalls including the KTM/GASGAS/Husqvarna brake recall and the BMW S 1000 RR ignition recall. It has been a busy month for safety notices in the motorcycle world.
Which Triumph TF 450 models are recalled?
The recall affects four models: the 2026 TF 450-C (cross country), TF 450-E (enduro), TF 450-X (motocross), and the 2025 TF 450-RC Edition.
What is the problem with the Triumph TF 450?
The rocker arm assembly in the cylinder head can experience excessive friction, out of tolerance. This can cause a gradual or sudden reduction in engine power, which could increase the risk of a crash. The fix requires a complete cylinder head replacement.
Is the Triumph TF 250 also affected?
No. At the time of writing, the recall does not affect the TF 250 lineup, nor the 2024 TF 450 models (except the 2025 TF 450-RC Edition).
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