More Power, More Demands - Here’s the Tire Tech That Keeps Up
E-bikes open up more terrain, more miles, and more fun - but they also demand more from your tires. The added weight and torque of electric mountain bikes (eMTBs) put extra stress on sidewalls, traction, and durability. That’s where WTB’s SG1 tire technology comes in.
Let’s dive into the best WTB e-bike mountain tires equipped with SG1 - an added support layer designed to enhance durability without slowing you down.
What is SG1 Technology?
SG1 (Sidewall Guard 1) is WTB’s durable e-bike-rated support layer. It adds reinforced bead, lower sidewall and tread cap protection while maintaining a supple ride feel and fast-rolling performance. SG1 tires are E-25 and E-50 compliant, making them ideal for everything from aggressive trail eMTBs to daily commute rigs.
Key Benefits of SG1:
• Reinforced beads, lower sidewall and tread cap for added durability
• Increases air retention
• Designed to handle for e-bike torque and speed
Best WTB E-Bike Tires with SG1
1. WTB Vigilante SG1
The aggressive front tire every eMTB deserves. The Vigilante’s tall knobs and open tread pattern provide maximum grip in loose or muddy conditions - ideal for riders who demand control at higher e-bike speeds.
Why it’s great for eMTBs:
• Confidence-inspiring traction
• SG1 protection supports heavier loads
• Excellent cornering and braking bite
2. WTB Trail Boss SG1
Built for versatility, the Trail Boss is your go-anywhere, do-anything e-bike tire. Its tighter center tread keeps things fast and efficient, while the side knobs dig in during turns and technical sections.
Perfect for:
• Mixed trail terrain
• Riders who value balance between speed and grip
• E-bikes that do it all—from trail rides to weekend adventures
3. WTB Verdict SG1
The most aggressive front tire in WTB's eMTB line up. The Verdict’s tall knobs and wide spacing clears mud while digging in during loose or muddy conditions—ideal for riders who demand control in tougher conditions.
Why it’s great for eMTBs:
• Confidence-inspiring traction
• SG1 protection supports heavier loads
• Excellent cornering and braking bite, especially in the wet
4. WTB Judge SG1
Built for versatility, the Judge aggressive and dependable rear focussed eMTB tire. The wide open spacing and wide braking edges bite in and help slow you down when things get tricky, while the robust and consistent side knobs provide impressive cornering confidence.
Perfect for:
• Mixed terrain, mixed conditions
• Riders who prioritise traction above all else
• Loose, steep, and challenging terrain
Final Thoughts: Why SG1 Matters for E-Bike Riders
The best e-bike tires need to do more - more traction, more support, more reliability. WTB’s SG1 range hits the sweet spot by giving you the durability you need without the sluggish weight penalty of traditional e-bike casings. Whether you’re blasting singletrack, cruising forest roads, or powering through your daily commute, SG1 tires deliver confidence with every pedal assist.
Time to power up and roll out. SG1’s got your back.
Wanna learn about more WTB tire casing options? Click here.
Thinking of going tubeless? Check this out.