TB, Billet Switch, Ignition and start – CRF110,125 2019+
TB Parts Billet Waterproof Start Switch – CRF110 / CRF125
Upgrade your stock start button with the TBParts Billet Waterproof Start Switch for Honda CRF110 and CRF125 models 2019+. Designed for riders who demand durability and reliability, this premium switch features a CNC-machined billet aluminum housing and a fully sealed waterproof design that stands up to mud, water, and harsh riding conditions.
Unlike the OEM switch, this billet unit is built tougher and comes in at a lower price. The compact design keeps the switch protected, while the recessed button placement helps prevent accidental activation—meaning you won’t accidentally hit the starter with your knee while riding.
Features:
- Fits Honda CRF110 and CRF125 models 2019+
- CNC-machined billet aluminum construction
- Fully waterproof sealed switch design
- More durable than the OEM switch
- Recessed button helps prevent accidental engagement from your knee
- Compact, clean factory-style appearance
- Easy installation
- Lower cost than OEM replacement switch assemblies
Why Upgrade?
OEM switches can be expensive to replace. Our billet waterproof switch offers improved durability, better protection from the elements, and a more secure button design—all at a more affordable price.
Built for racing, trail riding, and all-weather conditions. When reliability matters, upgrade to the TBParts Billet Waterproof Start Switch for your CRF110 or CRF125.



