MTB Tire Guide

Kenda Booster Pro vs Maxxis Aspen

Short answer: Rolling resistance: Maxxis Aspen leads with 29.9 W, Kenda Booster Pro trails by 5.4 W.

Configure your build

Width, casing, compound and pressure – every value on this page follows your pick.

Kenda Booster Pro

Tire width
Wheel size
27.5" wheel
29" wheel
Pressure (context)
Measured point

Maxxis Aspen

Tire width
Wheel size
27.5" wheel
29" wheel
Compound
Pressure (context)
Measured point
Measured value available
How we calculate

Width, casing and compound decide how a tire really rides. We only show what was actually measured – and label estimates honestly.

Kenda Booster Pro: Reference: recommended pressure 24 psi (1.65 bar) – an assumption, not a test pressure.

Maxxis Aspen: Reference: recommended pressure 24 psi (1.65 bar) – an assumption, not a test pressure.

More pressure: less rolling resistance, less grip, less comfort. Tougher casing: more protection, more weight. Softer compound: more grip, more rolling resistance.

Modelled values are assumptions based on the stated measurement points – not a lab test.

Size, weight and casing

Kenda Booster ProMaxxis Aspen
Width2.4" (61 mm)2.4" (61 mm)
Wheel sizes29" · 27.5"29" · 27.5"
Weight739 g778 g
CasingSCTEXO
Casing–Trail
TPI––
Tread typeIntermediateSemi-Slick
Tubeless readyyesyes
E-MTB approvalnono
Price from€49€59
Model year20252023

Rubber compounds

Hardness scale 1 = hard and fast to 5 = very soft and grippy (our own classification).

Kenda Booster Pro

Grip class: Speed-Grip

Maxxis Aspen

Grip class: Speed-Grip

Both tires sit in the same grip class – the watt comparison is fair.

Both tires sit on the same step of our editorial hardness scale.

Lab data per version

Kenda Booster ProMaxxis Aspen
Rolling resistance (W)35.3 W
29.9 W
Wet grip measurement (points)67.0 points
58.0 points
Weighed weight (g)739.0 g
778.0 g

Kenda Booster Pro

Maxxis Aspen

Compounds & versions as curves

Up to three versions at once: the curve is modelled rolling resistance across pressure, the dot is the real lab measurement. Click the legend to show or hide a version.

20.438.757.175.493.8121927344249Pressure (psi)WBicycle Rolling Resistance: 29.9 W at 28 psi (1.93 bar) (measured)Bicycle Rolling Resistance: 35.3 W at 28 psi (1.93 bar) (measured)
  • 33.8 W at 24 psi (1.65 bar) · Reference
    Wet grip (lab)
    58
    Puncture
    –
    Weight
    778 g
  • 39.9 W at 24 psi (1.65 bar) · +6.1 W
    Wet grip (lab)
    67
    Puncture
    –
    Weight
    739 g

The curve shape is a physics model, not a measurement. Labs do not measure grip across pressure – we do not invent that curve. Wet grip is a lab value per tire model, not per version.

Variants head to head

Every measured variant of the selected tires – the same model in another compound, width or casing sits right next to it. Empty fields mean no reliable measurement.

Kenda Booster ProBooster Pro SCT 2.435.3 W
–739 g
Maxxis AspenAspen MaxxSpeed EXO/TR 2.429.9 W
–778 g

Charts

Rolling resistance (fewer watts is better)

Impact protection (higher is better)

No values are available for this selection.

Editorial rating (higher is better)

TestedYour build – derived

Recommendation by use

  • Fast laps and long climbs: Maxxis Aspen rolls easier at 29.9 W.
  • Wet roots and slippery ground: Kenda Booster Pro has the better wet grip.

Tested

  • Rolling resistance: Maxxis Aspen leads with 29.9 W, Kenda Booster Pro trails by 5.4 W.
  • Wet grip measurement: Kenda Booster Pro leads with 67 points, Maxxis Aspen trails by 9 points.
  • Weighed weight: Kenda Booster Pro leads with 739 g, Maxxis Aspen trails by 39 g.

Tests and sources

Maxxis Aspen

  • In this test, the Maxxis Aspen eXCeption impresses as a lightweight all-rounder with low rolling resistance and good grip on dry, hard ground. The testers especially praise its low weight for marathon and XC use.

    MTB-News.de

More head-to-heads