2025 Specialized Rhombus Pro 2Bliss Ready
Specialized

2025 Specialized Rhombus Pro 2Bliss Ready

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Rhombus Pro 2Bliss Ready
Rhombus Pro 2Bliss Ready
Aggressive Gravel · Gripton · Endurant Protection · 2Bliss Ready

The Rhombus Pro's aggressive tread is designed for aggressive riding on aggressive trails. With more tire clearance and more capability, today's gravel bikes can take on tougher trails than ever before. The Rhombus Pro delivers unmatched traction, confident cornering, and improved comfort when the gravel road turns to single track. When you're ready to get rowdy on your gravel bike, the Rhombus Pro is the tire for you.

  • Aggressive Tread Design: Large center and shoulder knobs for unmatched traction on loose surfaces.
  • Gripton Compound: Specialized's legendary grip compound for confidence in corners and under braking.
  • Endurant Flat Protection: Gravel-specific puncture protection — lighter than Armadillo, tuned for off-road hazards.
  • 2Bliss Ready: Tubeless-compatible with easy setup and reliable seal.
  • 60 TPI Casing: Durable construction designed for aggressive off-road use.
  • Wide Sizes: 700x42C and 700x47C — maximum volume for confidence on rough gravel and singletrack.

Use: Aggressive gravel riding, gravel racing, when the road turns to dirt. The Rhombus Pro is for riders who push hard and need grip on loose, rough terrain. Pair with Pathfinder on the rear for a balanced setup — Rhombus front / Pathfinder rear is a popular combo.

Gravel + Aggressive = Rhombus Pro
The Rhombus Pro is Specialized's aggressive gravel tire — designed for riders who go where the pavement ends. The tread pattern is more aggressive than the Pathfinder or Tracer, with larger, more widely-spaced knobs for maximum traction in loose conditions. Multiple reviewers use it as a front tire paired with a Pathfinder on the rear — giving them the grip they need up front and faster rolling in back. If you ride genuinely rough gravel or light singletrack, the Rhombus Pro is built for that.
Mud Warning
One significant limitation: the Rhombus Pro is not a mud tire. Multiple reviewers note it cakes up fast in wet, sticky mud — one says "1/10 if you encounter mud" vs "10/10 dry conditions." The open tread pattern that works so well in loose gravel and dirt doesn't shed sticky mud well. For muddy gravel rides, look at the Tracer or Terra TLR instead.
Endurant Protection
Endurant is Specialized's gravel-specific flat protection — lighter than the Armadillo construction used in their road endurance tires, but tuned for off-road hazards like small rocks and thorns. It's the right balance for gravel: enough protection for rough rail-trail riding, without the weight penalty of road-specific Armadillo protection. Reviewers confirm it works — one racer finished 700 miles of Unbound XL with a puncture that quickly sealed, not noticing until post-ride.
General
Model
Rhombus Pro 2Bliss Ready
Position
Front & Rear (aggressive terrain); Front recommended for mixed setup
Use
Aggressive gravel, gravel racing, gravel-to-singletrack transitions
Terrain
Loose gravel, hardpack, dirt roads, light singletrack (not mud)
Type
2Bliss Ready (Tubeless-compatible Clincher)
Tread & Compound
Compound
Gripton — legendary grip, confidence in corners and under braking
Tread Design
Aggressive center and shoulder knobs for loose-surface traction
Casing
60 TPI — durable construction for aggressive off-road use
Bead
Folding — lighter than wire, easy tubeless mounting
Flat Protection
Endurant — gravel-specific puncture protection, lighter than Armadillo
Weights & Pressure
700 x 42C
575g
700 x 47C
615g
PSI Range
35-65 psi — run lower for more traction on rough terrain

Shipping Policy

Components:

All component items (wheels, drivetrains, suspension, brakes, etc.) ship within 1–4 business days of purchase.

Bicycles:

Complete bikes typically ship within 2–3 weeks due to build, tuning, and inspection times. You will receive tracking information as soon as your order is ready to ship.

Riding Gear & Apparel:

Riding gear and apparel orders (helmets, jerseys, gloves, etc.) ship within 1–3 business days.

Returns & Exchanges:

If you received the wrong size or wish to exchange an item, it must be returned in original condition—unused, uninstalled, and with all packaging intact.

For full details, please see our Refund Policy before initiating a return.

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Prepared with intention.

Every product is carefully inspected and handled by our team before it ships. From fit and function to final details, we make sure each piece is ready for the outdoors ahead—so you can focus on the experience, not the gear.

Passion drives us

At SpokeX Bike Co., bikes aren't just our business — they’re our way of life. As a rider-owned and operated shop, every decision we make comes from firsthand experience on the trail, at the race, and on the open road. We know what it’s like to chase a new line, push through the pain cave, and celebrate the ride — because we live it every day.

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