Schwalbe

Schwalbe Smart Sam Plus HS 624 (E-50) – 29 x 2.25" | 57-622 | Wire Bead | Reflective | E-Bike Ready 50 | Black

  • Schwalbe Smart Sam Plus HS 624 29x2.25 tyre with GreenGuard puncture protection layer visible

Schwalbe

Schwalbe Smart Sam Plus HS 624 (E-50) – 29 x 2.25" | 57-622 | Wire Bead | Reflective | E-Bike Ready 50 | Black

1402980805
€49,90
€49,90

Price incl. VAT excl. Local Import Taxes & Shipping Costs.

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Schwalbe Smart Sam Plus HS 624 (E-50) – Maximum Protection for Fast E-MTB

The Schwalbe Smart Sam Plus HS 624 (E-50) is the premium, heavily protected version of the legendary Smart Sam — engineered specifically for fast e-bikes (S-Pedelecs) and demanding e-MTB use. Combining the Smart Sam’s proven all-terrain versatility with an extra layer of puncture protection, this tyre is the definitive choice for riders who cannot afford a flat.

With SnakeSkin sidewall reinforcement, a GreenGuard puncture belt, and MTB-DoubleDefense protection, the Smart Sam Plus delivers outstanding reliability on tarmac, gravel, and trail — even under the increased loads of motor-assisted riding at speeds up to 50 km/h. The reflective sidewall strip adds essential visibility for early-morning and evening rides.

Key Specifications

  • Model: Smart Sam Plus HS 624 (E-50)
  • Size: 29 x 2.25" (ETRTO 57-622)
  • Rim diameter: 622 mm (29" / 700c)
  • Tyre width: 57 mm
  • Tyre type: Wire bead (clincher)
  • Sidewall: Black with reflective strip
  • Weight: 1,035 g
  • Max. pressure: 3.7 bar (54 PSI)
  • Puncture protection: Yes – MTB-DoubleDefense (SnakeSkin + GreenGuard)
  • Reflective strip: Yes
  • Compound: Addix Performance
  • E-Bike certification: E-Bike Ready 50 (ECE-R75 approved, up to 50 km/h)
  • EAN: 4026495912051
  • Manufacturer article number: 11159460
  • Packaging unit: 20 tyres per carton

Technology Stack

  • SnakeSkin – Performance Line multi-layer sidewall fabric reinforcement against cuts, abrasion, and pinch flats
  • GreenGuard – 3 mm highly elastic special rubber puncture belt under the tread (partly recycled material)
  • MTB-DoubleDefense – Combined protection: GreenGuard tread belt + SnakeSkin sidewalls for all-round flat defence
  • Addix Performance Compound – Wide-range universal rubber for durability and grip across varied conditions
  • ECE-R75 type approval – Legally approved for S-Pedelecs requiring insurance and registration

Frequently Asked Questions (FAQ)

What is the difference between the Smart Sam and the Smart Sam Plus?

The Smart Sam Plus adds the MTB-DoubleDefense puncture protection system on top of the standard Smart Sam construction. This means an additional GreenGuard puncture belt under the tread and SnakeSkin sidewall reinforcement — making the Plus significantly more resistant to flats from thorns, glass, and trail debris. The trade-off is slightly more weight (1,035 g vs ~840 g for the standard version). For e-MTB and loaded touring, the Plus is the better choice.

What does E-50 (E-Bike Ready 50) mean?

E-Bike Ready 50 means this tyre is certified for fast e-bikes (S-Pedelecs) travelling up to 50 km/h. It carries the ECE-R75 type approval, which is a legal requirement in most European countries for S-Pedelecs that require insurance and registration. If your e-bike exceeds 25 km/h with motor assistance, you need an ECE-R75 approved tyre — this is it.

What is MTB-DoubleDefense and how does it work?

MTB-DoubleDefense is Schwalbe’s combined puncture protection system for mountain bike use. It layers two complementary technologies: GreenGuard — a 3 mm belt of highly elastic special rubber (partly recycled) under the tread — stops sharp objects penetrating from below, while SnakeSkin — a dense multi-layer fabric reinforcement — protects the sidewalls from cuts, abrasion, and pinch flats. Together they provide 360° flat protection without the weight penalty of a full-protection tyre.

What is GreenGuard and is it eco-friendly?

GreenGuard is Schwalbe’s Protection 5 puncture belt. It is made partly from recycled rubber, making it one of Schwalbe’s more sustainable protection technologies. The highly elastic compound absorbs impacts without cracking and provides reliable protection against thorns, glass, and road debris. It sits directly under the tread, invisible from the outside.

What is SnakeSkin and why does it matter for e-bikes?

SnakeSkin is Schwalbe’s Performance Line sidewall reinforcement — a dense, multi-layer fabric weave that resists cuts and abrasion from kerbs, rocks, and trail debris. On e-bikes, sidewall protection is especially important because the higher speeds and weights increase the risk of pinch flats and sidewall damage. SnakeSkin significantly reduces this risk without adding excessive weight.

What is the correct tyre pressure for the Smart Sam Plus?

The maximum pressure is 3.7 bar (54 PSI). For a 2.25" wide tyre on an e-MTB, typical riding pressures are 2.0–3.0 bar (29–44 PSI). Use lower pressures for trail grip and comfort on rough terrain; higher pressures for faster rolling on tarmac or hardpack. Heavier riders and e-bikes should generally run slightly higher pressures. Never exceed the maximum pressure marked on the tyre sidewall.

Does this tyre have a reflective strip?

Yes. The Smart Sam Plus features a reflective strip on the sidewall, improving visibility in low-light conditions. This is a particularly valuable safety feature for e-bike commuters and riders who ride at dawn, dusk, or in urban traffic.

What rim size does this tyre fit?

The Smart Sam Plus (57-622) fits 29" rims (also known as 700c, ETRTO inner diameter 622 mm). It is not compatible with 26", 27.5", or other rim diameters. Always verify your rim’s ETRTO diameter before purchasing.

Is this tyre tubeless-ready?

No. This listing is a wire bead (clincher) tyre that requires a standard inner tube. Wire bead tyres are more affordable and very robust. A folding bead or tubeless-ready version may be available separately — check the product code carefully when ordering.

Is this tyre suitable for bikepacking or loaded touring on an e-bike?

Yes — the Smart Sam Plus is an excellent choice for loaded e-bike touring. The MTB-DoubleDefense protection minimises the risk of flats in remote locations, the Addix Performance compound handles varied surfaces and temperatures, and the reflective strip improves safety on road sections. Its 29 x 2.25" volume also provides good comfort over long distances.

Is this tyre sold individually?

Yes, this listing is for one (1) tyre. Trade cartons contain 20 units (VE: 20). Inner tube sold separately.

Schwalbe Smart Sam Plus HS 624 (E-50) – 29 x 2.25" | 57-622 | Wire Bead | Reflective | E-Bike Ready 50 | Black
€49,90
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