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Tires and Tubes > Road Tires > City/Touring Tires

Product Images

Surly ExtraTerrestrial 27.5 Inch Adventure Tire 27.5 x 2.5 - Black
Surly ExtraTerrestrial 27.5 Inch Adventure Tire 27.5 x 2.5 - Black
Surly ExtraTerrestrial 27.5 Inch Adventure Tire 27.5 x 2.5 - Slate Grey
Surly ExtraTerrestrial 27.5 Inch Adventure Tire 27.5 x 2.5 - Slate Grey
27.5 x 2.5 - Black
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Surly ExtraTerrestrial 27.5 Inch Adventure Tire 1
Surly ExtraTerrestrial 27.5 Inch Adventure Tire 2
Surly ExtraTerrestrial 27.5 Inch Adventure Tire 3
Surly ExtraTerrestrial 27.5 Inch Adventure Tire 4

Surly ExtraTerrestrial 27.5 Inch Adventure Tire

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$75.00
MSRP: $75.00
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Description

Ride without limits with high volume, kick-ass adventure tires

When you're out on a ride the last thing you want is to be held back by your tires in any way.

Surly's ExtraTerrestrial Tires were designed to let you ride without limits by simply following the only tenets the brands has for tire design: they're high volume and they kick ass.

The ExtraTerrestrial tire was meant to serve as a heavy-duty off-road touring tire that shines on hardpack surfaces. It uses a nylon breaker in the sidewalls for cut protection, a molded pattern for anti-cut propagation, and a Kevlar cap under the tread to protect against flats.

The ET Tire uses a distinctly directional tread pattern and its width yields more traction than you might expect from a tire with such little rolling resistance. The tread is low profile with a file tread in between tread blocks.

The ExtraTerrestrial tire has enough width and traction for the soft stuff and won't bog you down on smooth or hard surfaces.

The finishing touch is a slate sidewall that brings an understated element of flair to any frame or kit.


Features:

  • Measures 27.5x2.5"
  • 60 TPI casing
  • Tubeless ready

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.

The product weight specified is an approximate weight based on the manufacturer's specifications (if available) or our measurement of one or two examples. For most products, the weight will typically vary by 5% to 10%.

Specifications

Weight: 990 grams

Wheel Size: 650B (ISO 584) 

Tire Width: 64mm (2.5in) 

Tire Type: Tubeless Ready 

Threads Per Inch: 60 

27.5 x 2.5 - Slate Grey

Mfg PartNum: TR7506 

27.5 x 2.5 - Black

Mfg PartNum: TR7505 

Reviews

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Reviewed 3/19/2023
by Anonymous
Cycling Enthusiast
Woodstock, Ga
Value Rating
Overall Rating
1 of 1 customers found this review helpful.
It Says What It Is Right On The Tire!

I have these on two very different bikes. I keep a 29" wheelset with these so I can ride my full suspension MTB on the road to get to the trail, and I also have the 27.5" 's on my Surly Bridge Club, so that I can ride my grocery getter on singletrack. The off road traction on this tire is outstanding. Rolls faster on pavement/gravel than a knobbed mtb would.

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Reviewed 10/21/2021
by Kelvin
Garland, TX
Overall Rating
3 of 3 customers found this review helpful.
Great tire replacement for mountain bike/street use

This tire, is a great substitute for road use when your favorite trails are rained out or snow covered. Tubeless rules the day with these tires, not disappointed at all. Buy with confidence these are a good purchase.

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Reviewed 2/25/2021
by Anonymous
Overall Rating
4 of 4 customers found this review helpful.
Good tire, mounts easily

No problems with setup. Tire is sturdy and rolls well, looks good too. Nice for commuting and groomed trail riding.

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Mechanic's Corner

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A guide to bicycle tire sizes, both standard on newer bikes and common on older bikes.
Understanding older bicycle tire sizes.
A useful chart for determining the tire size you need for your bicycle.
Tire Tips   
Tips for proper bicycle tire mounting and tire safety.
A guide to understanding tire width.
A guide to understanding bicycle tire tread patterns and what you should look for.
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