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SerfasSTX Inertia Road Folding Tire

Sale 67% OffCurrent price:$19.99 Original price:$60.00

Item # SRFM09E

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  • Black, 700x25c ($19.99)
  • Black, 700x28c ($19.99)
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Item # SRFM09E

Why We Like The STX Inertia Road Folding Tire

Serfas' STX Inertia Road Folding Tire is designed for high performance when we're speeding across tarmac and dipping into winding descents. It features a smooth tread for lower rolling resistance and exceptional grip, and it's constructed using the brand's Alchemy Compound.

  • Serfas folding tire for cyclists who love the open road
  • Serfas FPS Flat Protection means we're covered on a bumpy ride
  • Dual Density Tread and Alchemy Compounds for low rolling resistance
  • Enhanced grip for cornering at top speeds
  • Smooth tread pattern for improved performance

Tech Specs
CompoundDual Density Tread
ProtectionFPS Flat Protection System
Recommended Useroad cycling
Manufacturer Warrantylimited lifetime

Actual Weight

Black, 700x25c
Black, 700x28c

Claimed Weight

Claimed weights are provided by the vendor.

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[700c x 23] 222g, [700c x 25] 242g, [700c x 28] 312g

Actual weights are measured in-house by the Competitive Cyclist team.

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What do you think about this product?



How is the sizing on these tires? I'm looking to use these on a rim with moderately wide rims (17mm internal width) on a frame with tight clearances. Nominally, the frame takes a 25mm max tire width, though actually 27mm wide tires can fit if they're not too tall and rub the front derailleur collar. For comparison's sake, I can use 25mm Vittoria Corsa CXIII and Continental GP 4000sII tires with no clearance problems, with the latter leaving some additional room on the table. Basically I want to use the fattest slick tires that'll fit. If these are undersized, I might get the 28mm tires rather than the 25mm.