Origin8 Tsunami 26 x 4.0 Fat Bike Tire | Folding 120 TPI
Origin8 Tsunami 26 x 4.0 Folding Fat Bike Tire
Bring a supple casing and an open, knobby tread to your fat-bike setup. This Origin8 Tsunami is the folding-bead, 120 TPI version, distinct from the 30 TPI wire-bead model.
Features
- Well-spaced, siped lugs for traction on loose surfaces, including sand and snow.
- Staggered shoulder lugs support cornering grip.
- Supple 120 TPI casing and a folding bead for compact storage.
- 2C MTB dual-compound marking on the tire sidewall.
- Black tread and sidewalls; non-reflective.
Specifications
- Size: 26 x 4.0
- Bead-seat diameter: ISO 559 mm
- Construction: clincher, folding bead
- Casing: 120 TPI
- Supplier-listed pressure: 20 PSI; inspect the tire and rim limits before inflation.
- Brand: Origin8
- UPC: 888571023921
Intended Use
Fat-bike riding on compatible equipment, with a tread suited to loose surfaces. E-bike fit depends on the actual rim, clearance and bicycle requirements; this listing does not claim a manufacturer e-bike speed or load certification.
Before You Buy
Match the 559 mm bead-seat diameter and confirm that your rim manufacturer approves a 4.0-inch tire. Check frame and fork clearance, including clearance for debris. Mounted width varies with rim and setup. A 26-inch label alone does not establish fit, and this is not an automatic replacement for every 26 x 3.0–5.0 tire.
Installation and Included Contents
Sold individually: one tire, not a pair. No tube, rim tape, sealant, tools or installation service is promised. Confirm a compatible tube and rim protection for your setup. Tubeless and hookless compatibility are not verified; a folding bead alone does not establish either. Ask Go Grava for help with fit or installation.
Mechanic Compatibility Guide
Q: Which version is this? A: Origin8 Tsunami 26 x 4.0, black folding bead, 120 TPI, UPC 888571023921. It is not the 30 TPI wire-bead model.
Q: What rim diameter and width are needed? A: ISO 559 mm bead-seat diameter. A manufacturer-approved rim-width range is not verified; confirm with the tire and rim manufacturers before installation.
Q: Will it replace any 26-inch fat tire? A: No. Check bead-seat diameter, approved tire and rim width, actual mounted size, frame and fork clearance, and bicycle load or speed requirements.
Q: Is it tubeless-ready or hookless-compatible? A: Neither is verified. Do not recommend either installation without explicit tire and rim manufacturer approval.
Q: What inflation pressure applies? A: The supplier lists 20 PSI. Inspect the actual tire sidewall and rim limits, follow the lower applicable limit and choose pressure for the complete setup; 20 PSI is not a universal recommendation.
Q: What compound is verified? A: The sidewall image is marked 2C MTB DUAL COMPOUND. Exact rubber durometers are not verified.
Q: What is included? A: One tire. Confirm a compatible tube, rim protection, pump and suitable tire levers separately; none are promised with this listing.
Q: What is the bare tire weight? A: Not verified in a supported unit. Supplier packaged shipping weight must not be represented as bare tire weight.
Q: Is E-Bike categorization a certification? A: No. Verify the actual bicycle fit and any manufacturer load or speed requirements.