45NRTH Bike

Frequently Asked Questions

• How do I choose the right 45NRTH fat bike tire for snow versus ice?

  Choose studded 45NRTH models when ice is a primary concern and go studless or lightly studded for deep, soft snow. For the most aggressive ice traction pick the Wrathlorde with its 300 XL concave studs and tight, low‑rolling lugs; the Wrathchild is a great option if you want a studdable platform with deeper lugs for mixed winter trails. For all‑around snowy trail riding the updated Vanhelga (120 TPI, tubeless‑ready) balances cornering and braking without studs.
• How does the Wrathlorde compare to the Wrathchild for winter fat biking?

  The Wrathlorde is built for maximum ice bite—its ~300 XL concave studs and shallow, tightly spaced lugs prioritize low rolling resistance and pure ice grip on sketchiest surfaces. The Wrathchild is a more tunable, studdable tire with deeper, more open lugs for traction in rutted, variable snow and offers sizes including 26" fat and 27.5+ for wider setups. Choose Wrathlorde for hard, icy routes and Wrathchild if you want a high‑traction, customizable tire for mixed winter terrain.
• Are 45NRTH fat bike tires tubeless-compatible and what are the benefits in winter?

  Many higher‑TPI 45NRTH models are tubeless‑ready (for example, the Vanhelga is 120 TPI tubeless‑ready), allowing you to run lower pressures for improved flotation and traction on snow while avoiding pinch flats. Tubeless setups also let you use sealant that can seal small punctures, but proper bead seating and compatible rims are important in cold temps. Note that stud installation or replacement may require specific stud types and attention to rim/tire compatibility.
• What tire sizes and casing choices should I check for fitment on a fat bike frame and wide rims?

  Confirm frame and fork clearance for the intended width—Wrathlorde is offered as a 26 x 4.2" fat tire, while other models like Wrathchild come in multiple fat and 27.5+ options—so measure clearances for brakes and chainstays before choosing. Look for a 120 TPI tubeless‑ready casing if you want a supple ride and tubeless capability, and verify bead type (wire vs. folding) and rim width compatibility (some setups use very wide rims, e.g., ~65mm). Also consider studdable options if you plan to add or swap studs for changing icy conditions.