Bontrager Line MTB Rim
Bontrager

Bontrager Line MTB Rim

4.5

Best heavy duty rim for aggressive downhill mountain bikers.

Built for the rigors of gravity riding, this rim offers a robust platform for aggressive trails. The tubeless-ready design allows for lower tire pressures, significantly improving traction and cornering stability when the terrain gets rough.

Material Aluminum
Aluminum
Steel
Wheel Diameter Inches 29
Internal Rim Width Mm 29

Who it's for

  • Downhill racers seeking a rim that survives aggressive bike park laps
  • Riders who prioritize a hassle-free and secure tubeless setup
  • Budget-conscious privateers needing reliable gear for a full racing season

Who should skip it

  • Weight-conscious trail riders who value climbing efficiency over downhill burliness
  • Endurance riders looking for maximum vibration damping on long descents
  • Enthusiasts wanting maximum tire volume and support for ultra-wide rubber

Performance breakdown

Impact Resistance

Double-wall alloy construction shrugs off harsh impacts on technical descents.

Excellent

Tubeless Setup Ease

The refined profile makes seating tires a quick, frustration-free experience.

Excellent

Cornering Stability

Wide internal width provides a planted, confident feel through aggressive turns.

Excellent

Weight Efficiency

Balances rugged durability with a weight that won't anchor your climbing.

Good

Traction Performance

Optimized for lower pressures, delivering exceptional grip on loose, technical trails.

Excellent

Build Versatility

Standard 32-hole drilling makes this an easy fit for most hubs.

Excellent

Key Specs

Material

Alloy

Wheel Diameter

29 inches

Spoke Count

32

Internal Rim Width

29 mm

Outer Rim Width

33 mm

Tubeless Ready

Yes

Rim Construction

Double-wall

Intended Use

Downhill

Know before you buy

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