1.800.651.4050 Mon-Sat 8am-5pm PT
CLICK HERE to join our Email List and get 15% off your first order*
*Restrictions Apply. Click for details.


Product Images

Maxxis Aspen ST MaxxSpeed/EXO/TR 29" MTB Tire
Click to zoom

Maxxis Aspen ST MaxxSpeed/EXO/TR 29" MTB Tire

Pricing and Order Section

Mfg PartNum:
Earn $0.00 in Rewards credit. Click to Learn More.

MSRP: $93.00-$101.00
In Stock
This model is not eligible for Rewards points
Price matches are is not eligible for Rewards points
pricematch tag
InstantPrice MatchWhat is this?
Qualifies for Free Shipping!


Keep Your Competition Quaking

The Maxxis Aspen ST is an ultra-low-profile race tire designed primarily for short track XC use. Sometimes referred to as the "Fastpen," this tire is sure to give any racer an edge in dry conditions.

MaxxSpeed is Maxxis' top-shelf rubber compound for XC racing. It's a high-silica content compound which reduces rolling resistance while also enhancing wet traction. Compared to the previous 3C MaxxSpeed, the new compound has approximately 25% less rolling resistance in a lab setting (using the same tread pattern, construction, and tire pressure). In a real world setting, testing shows the new compound can save up to a minute over the course of a 90-minute race.

EXO is a cut- and abrasion-resistant material added to the sidewalls of many Maxxis mountain bike and gravel tires. This densely woven fabric is lightweight and highly flexible, ensuring that the performance of the tire remains unaffected. Choose EXO Protection for enhanced durability for gravel, XC, and light-duty trail riding.


  • MaxxSpeed rubber compound
  • EXO (XC Race) casing
  • 29x2.40 (Designed around modern 30mm XC Rims)
  • 29x2.25 (Narrower rims)
  • 120 TPI (XC Race)
  • 170 TPI Team Spec (Ultra Lightweight XC)
  • Tubeless Ready (TR)
  • Dry XC Conditions
  • Front or Rear
  • 670/750 grams (120 TPI)
  • 610/685 grams (170 TPI)

B-Stock - This product has one or more B-Stock units available. These units can be purchased at a discount (see option select). B-Stock units were returned from other customers and may have missing or damaged packaging materials. These units are otherwise as new. The full manufacturer warranty applies. Click Here for more information.



Tire Type: Tubeless Ready 


Wheel Size: 700C/29" (ISO 622) 

29 x 2.25 - 120TPI Black

Application: MTB 

Mfg PartNum: TB00523300 

Tire Width: 57mm (2.2in) 

29 x 2.25 - 170TPI Team Spec Black

Mfg PartNum: TB00523400 

Tire Width: 57mm (2.2in) 

29 x 2.40 - 120TPI Black

Mfg PartNum: TB00523500 

Tire Width: 60mm (2.4in) 

29 x 2.40 - 170TPI Team Spec Black

Mfg PartNum: TB00523700 

Tire Width: 60mm (2.4in) 


Articles will open in new tab.

A short primer on emergency bicycle tire repair.
Make your upgrades count. Here's the equipment that will help you ride your bike faster.
Selecting the proper tires for vintage bicycles.
A how-to guide to removing and installing tires, plus some useful tire tips.
Find your tire size in this exhaustive chart.
Know your tire size. This article provides a summary of the common, and not so common, bicycle tire sizes.
Tire Tips   
Keep on rolling safely with these tire tips and recommendations.
Tubular, clincher, tubeless? Wire bead or Kevlar bead? Application? Find answers here.
The tube run-down: valves, weights, valve stems, sizing, and more.
additional content loading
additional content loading
additional content loading