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Surly ExtraTerrestrial Tubeless Touring Tire (Black/Slate) (700c) (41mm) (Folding)

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Surly ExtraTerrestrial Tubeless Touring Tire (Black/Slate) (700c) (41mm)

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The Surly ExtraTerrestrial Tubeless Touring Tire is an ultra-durable tire designed to provide low rolling resistance and durability on various multi-road surfaces. The low-profile, directional tread pattern maintains traction when it’s needed.

Features:

  • Molded tread pattern for anti-cut propagation
  • Kevlar cap under the tread to protect against flats
  • Nylon breaker in the sidewalls for cut protection
  • Recommended rim width: 23 – 30mm

Specifications:
Tire Type: Tubeless (Clincher)
Bead: Folding
Compound | Casing: -
TPI (Threads Per Inch): 60 TPI
Puncture Protection: Tread & Sidewall
Inflation: 60 PSI Max
Color: Black/Slate
Weight: 928g (26" | 2.5")

This product was added to our catalog on March 8, 2024

James Hill
Verified Owner
Sunday, Jul 21 2024 (5 months ago)
Surly ExtraTerrestrial Tubeless Touring Tire (Black/Slate) (700c) (41mm)
I loved these tires. The rolling resistance is good, and I like the combo tread that works well on the road and in the gravel. HOWEVER, with less than 400 miles the tire is delaminating at the casing. I can see the casing at most of the tread intersections and it's been getting wider. The tread wear is fine and hardly shows and wear, but I do not feel safe any longer when I can see down to the casing. The casing looks sort of OK from the inside but shows signs of creasing along the tread lines too.

There is a serious manufacturing deficiency with these tires. I would have expected much better from Surly.
2 customers found this review helpful.
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Tire Size Chart

Inch SizingISO / ETRTO
(Diameter)
12.5"203
14"254
16" BMX / Kids305
16" Recumbent349
18" BMX / Kids355
18"400
20" BMX / Kids406
20 x 1-3/4"419
20 x 1-3/8", 20 x 1-1/8"451
22"457
22" Wheel Chair501
24" BMX / Kids507
24" BMX Race (Fractional)
24" Road		520
24" Old Schwinn S-7 Size521
24" Wheel Chair540
24" Old Schwinn S-5 Size547
26" Mountain559
650c Small Road Bike571
27.5 / 650b584
26 x 1-3/8590
26" Old Schwinn S-6597
700c / 29" / 28"622
27" Road (Fractional)630
28" Track Tubular635
36" Big Bike787

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