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29 x 2.5 - Black
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29 x 2.5 - Black
29 x 2.5 - Slate Grey

Surly ExtraTerrestrial 29 Inch Adventure Tire

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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.

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Reviewed 2/22/2019
by particleguy
Cycling Enthusiast
Irvine, CA
Value Rating
Overall Rating
3 of 3 customers found this review helpful.
Tires that made my El Mariachi into a roadgravel touring machine!

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!

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Reviewed 9/21/2018
by Ben
Hong Kong
Overall Rating
4 of 5 customers found this review helpful.
Absolutely love them

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

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