The WTB Venture 700×40 tire is engineered for mixed-surface riders who demand grip and efficiency across gravel, pavement, and hardpack trails. As a tubeless-ready model, it offers lower rolling resistance, reduced flats, and increased comfort. However, to unlock its full potential, precise mounting and sealing are essential. This guide details the step-by-step process of installing, sealing, and troubleshooting Venture 700×40 tubeless tires for optimal performance.
Tools Required
- Tubeless-ready rims (compatible with 700c tires)
- WTB Venture 700×40 tires
- Tubeless rim tape (width matched to internal rim width)
- Tubeless valve stems (presta, 40mm+ length)
- Tire levers (plastic, non-metal)
- Sealant injector or squeeze bottle
- Tubeless sealant (e.g., Stan’s NoTubes, Orange Seal)
- Air compressor or high-volume floor pump
- Soapy water in spray bottle
- Clean cloth or rag
Preparing the Rim for Tubeless Setup
Before installing the Venture 700×40, ensure your rims are properly prepped for tubeless compatibility. Clean the rim thoroughly to remove debris or residue from previous rim tape or tube setups. Use isopropyl alcohol for a grease-free finish. Once dry, apply tubeless tape with even tension, overlapping slightly at the valve hole to prevent air leakage. Pierce a small hole to insert the valve stem securely. Hand-tighten the lock ring to ensure a snug fit.
Mounting the WTB Venture 700×40 Tires
Begin by fitting one bead of the Venture tire onto the rim. Make sure the directional tread (if specified) aligns with the intended rotation. Start from the opposite side of the valve to reduce pressure points. Once one side is seated, add sealant directly into the tire (60–90 mL per tire) before mounting the second bead.
Work the second bead into the rim using your hands, reserving tire levers only for the final tight section to avoid bead damage. Ensure both beads are aligned in the center channel of the rim bed to aid inflation.
Inflating and Sealing the Tire
For most installations, a high-volume floor pump may suffice. However, for tighter bead/rim interfaces or new tires, an air compressor or booster pump delivers rapid air volume needed to seat both beads simultaneously.
Spray soapy water around both tire beads before inflating to help with bead seating. Inflate rapidly to 40–60 psi to snap the bead into place. Listen for audible pops, which indicate proper bead seating. If the tire fails to seat, release pressure, recheck tape, valve seal, and bead position, then try again.
Once seated, rotate and shake the wheel in various directions to evenly distribute sealant inside. Lay it flat for 10 minutes per side to ensure complete coverage.
Checking for Leaks and Final Adjustments
Inspect the tire sidewalls and bead seat for microbubbles, which indicate minor leaks. Light bubbling should stop as sealant plugs gaps within minutes. If persistent leaks occur, add a small amount of sealant via the valve stem and re-agitate the tire.
After 24 hours, recheck pressure and top off if needed. Adjust final pressure based on terrain and rider weight. The Venture 700×40 performs best between 30–45 psi for most gravel and mixed terrain setups.
Maintenance and Sealant Refresh
Tubeless setups require regular maintenance to remain airtight and functional. Every 2–3 months, remove the valve core and check sealant volume. Dry or coagulated sealant should be replaced entirely. Avoid riding below 20 psi, as it risks bead unseating or rim damage. Visually inspect the tire for cuts or punctures that may compromise sealant integrity.
Troubleshooting Common Issues
Bead won’t seat: Ensure tape is tight and valve core isn’t blocked. Lubricate the bead with soapy water and use an air compressor for better pressure delivery.
Persistent leaks: Check for poor tape adhesion, defective valve seals, or punctures in the casing. Reapply tape or add extra sealant as needed.
Burping during rides: This indicates insufficient pressure or bead security. Reinflate to a higher psi, check for seal integrity, and verify tire fit on the rim.
Sealant spraying at high speed: Likely due to a sidewall cut or unsealed puncture. Stop riding immediately and inspect the damage. Patch or replace the tire if necessary.
Optimizing Performance
The Venture 700×40 thrives when set up tubeless at optimal pressure based on rider weight and terrain. For improved traction and comfort, drop pressure slightly when riding on rough gravel. On smoother surfaces, increase pressure for reduced rolling resistance.
You can also combine the Venture with a faster-rolling rear tire (e.g., WTB Byway) for efficiency while retaining front-end grip. For racers, consider a lightweight sealant to save rotational weight, though it may require more frequent top-offs.
Compatibility with Other Drivetrain Components
The WTB Venture 700×40 is designed strictly for 700c wheels and works best with rims featuring an internal width of 19–25 mm. Ensure your frame has adequate clearance, especially with disc brakes, as the mounted width can reach 42 mm.
The tire pairs well with both 1x and 2x drivetrains and performs reliably across Shimano GRX, SRAM XPLR, and Campagnolo Ekar systems. Always confirm chainstay clearance before mounting, especially on road frames adapted for gravel use.
Model Comparison: Venture 700×40 vs Similar Tires
When comparing the Venture 700×40 to similar tires like the WTB Riddler 700×37 and Teravail Rutland 700×42, a few distinctions arise. The Venture offers superior cornering traction due to its file tread center and outer knobs, while the Riddler is faster on dry hardpack. The Rutland leans toward more aggressive gravel with pronounced knobs but sacrifices rolling speed.
For all-weather versatility and consistent grip across mixed surfaces, the Venture 700×40 stands out as the most balanced performer in its class.
Frequently Asked Questions
1. Can I run the Venture 700×40 with tubes?
Yes, though it’s optimized for tubeless use. If using tubes, ensure they match the 700×35–45c range.
2. What rim width is best for this tire?
Rims with an internal width of 19–25 mm offer optimal tire profile and performance.
3. How much sealant should I use?
Use 60–90 mL of sealant per tire. Larger volumes may be needed for porous casings or new setups.
4. How often should I add sealant?
Check and top off every 2–3 months, or sooner in hot, dry climates.
5. Is the Venture suitable for tubeless conversion on older rims?
Only if those rims are labeled tubeless-ready. Otherwise, sealing can be unreliable.
6. What pressure should I run for mixed terrain rides?
30–45 psi, depending on rider weight, terrain, and desired comfort level.
Conclusion
Mounting and sealing the WTB Venture 700×40 tubeless tire is a straightforward process when done with proper preparation and tools. With precise installation, regular maintenance, and pressure tuning, riders can enjoy confident traction, reduced flats, and smoother performance across diverse terrain. By understanding the tire’s compatibility, customization potential, and troubleshooting tips, cyclists can make the most of this versatile and dependable gravel tire.