FREE SHIPPING on orders of $50 or more.* Same day shipping before 3PM Pacific.
Questions? Call our experts!
Click to zoom

ExtraTerrestrial 29 Inch Adventure Tire

Mfg PartNum:
  (2 customer reviews)
Earn $6.00 in Rewards credit. Click to learn more.
This color is not eligible for Rewards points
Out of Stock
Please Confirm Color
This item is currently out of stock. Click Notify Me to receive an email when the item becomes available.
InstantPrice MatchWhat is this?
Qualifies for Free Shipping!

Phone home.

The Surly ExtraTerrestrial Adventure Tire is designed to ride without limits, featuring a high-volume, heavy-duty construction. This tire shines on hard packed surfaces, featuring a distinctly directional tread pattern that yields more traction than you might expect, yet still offers very low rolling resistance. With its 2.5" width, the ExtraTerrestrial offers enough width and traction for the soft stuff, as well.

The Surly ExtraTerrestrial Adventure Tire measures 29x2.5". 60 TPI casing. Tubeless ready.

Ordered by Most Relevant First
5 stars
4 stars
3 stars
2 stars
1 stars
Tires that made my El Mariachi into a roadgravel touring machine!
by particleguy
Cycling Enthusiast
Irvine, CA
4 of 4 customers found this review helpful.

I bought these tires for my Salsa El Mariachi, for which I replaced the stock wheels with ones having wider rims (Ibis 938). My goal was to have a faster rolling bike that I can use on both pavement and gravel. I think I've achieved this with these Surly ETs. I'm going tubeless and they seated onto the 938s very easily. I love the way the bike handles with these tires ... grippy, super stable, and fast(ish). It remains to be seen how well these will wear ... I suspect that will depend on how much pavement I will ride on vs. dirtgravel. But for the moment I would say that I really like these tires!

Reviewed 2/22/2019
Was this review useful to you? Yes/No
Thank you for your feedback.
Absolutely love them
by Ben
Hong Kong
4 of 5 customers found this review helpful.

Fast rolling, low resistance, sure footed and confidence inspiring.

Reviewed 9/21/2018
Was this review useful to you? Yes/No
Thank you for your feedback.

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.