Schwalbe Smart Sam HS 624 (E-25) – The Road & Trail Allrounder for E-MTB

The Schwalbe Smart Sam HS 624 is a versatile all-terrain tyre that bridges the gap between road efficiency and off-road capability. With its modern offroad look and optimised rolling properties, the Smart Sam is the perfect choice for e-MTB riders and trekking cyclists who want one tyre that performs confidently on tarmac, gravel, and trail alike.

Featuring Addix Performance Compound and the E-Bike Ready 25 (E-25) certification, this tyre is engineered specifically for Pedelecs — e-bikes with pedal assistance up to 25 km/h — where safety and durability under motor-assisted loads are paramount.

Note: This tyre is available from Week 41/2026 (from 05.10.2026). Pre-order now to secure your stock.

Key Specifications

Model: Smart Sam HS 624 (E-25)
Size: 27.5 x 2.60" (ETRTO 65-584)
Rim diameter: 584 mm (27.5" / 650B)
Tyre width: 65 mm
Tyre type: Wire bead (clincher)
Sidewall colour: Black
Weight: 840 g
Max. pressure: 3.0 bar (44 PSI)
Compound: Addix Performance
E-Bike certification: E-Bike Ready 25 (Pedelec up to 25 km/h)
EAN: 4026495912778
Manufacturer article number: 11159486
Packaging unit: 20 tyres per carton
Availability: From Week 41/2026 (05.10.2026)

Why Smart Sam?

Perfect road/trail compromise – rolls fast on tarmac, grips confidently on gravel and light singletrack
Optimised for E-MTB – engineered to handle the additional torque and weight of motor-assisted riding
Modern offroad aesthetics – aggressive tread look with practical all-round performance
Addix Performance Compound – wide-range universal rubber for durability and grip across conditions

Frequently Asked Questions (FAQ)

What type of riding is the Schwalbe Smart Sam HS 624 designed for?

The Smart Sam is built for riders who want a single tyre that works well on both road and off-road surfaces. Its tread pattern provides low rolling resistance on tarmac while the shoulder knobs deliver grip on gravel, dirt, and light trail. It is particularly well-suited to e-MTB, trekking, and commuting with occasional off-road detours.

What does "E-25" mean on this tyre?

E-Bike Ready 25 (E-25) is Schwalbe's certification for tyres designed for standard Pedelecs — e-bikes with pedal assistance up to 25 km/h. These tyres are built to handle the higher loads, increased torque, and greater wear caused by motor assistance. The E-25 rating is the most common e-bike tyre standard in Europe and is suitable for the vast majority of e-bikes on the market.

What is the difference between E-25 and E-50 certification?

E-25 tyres are rated for standard Pedelecs (up to 25 km/h, no special registration required). E-50 tyres carry the ECE-R75 type approval and are required for fast e-bikes (S-Pedelecs) travelling up to 50 km/h, which require insurance and registration in most European countries. For a standard e-bike or e-MTB, E-25 is the correct and sufficient certification.

What is Addix Performance Compound?

Addix Performance is Schwalbe's universal rubber compound for the Performance Line. It offers a wide operating range — balancing grip, rolling resistance, and durability across varied conditions and temperatures. Similar to Speedgrip in its versatility, it is the ideal compound for riders who encounter mixed surfaces and weather. It is more durable than Addix Soft (which prioritises grip) and grippier than Addix Race (which prioritises speed).

Is this a tubeless-ready tyre?

No. The Smart Sam HS 624 in this listing is a wire bead (clincher) tyre that requires a standard inner tube. Wire bead tyres are heavier than folding bead tyres but are more affordable and very robust. A folding or tubeless-ready version may be available separately — check the product code carefully when ordering.

What is the maximum tyre pressure for the Smart Sam HS 624?

The maximum pressure is 3.0 bar (44 PSI). For a 2.60" wide tyre, typical riding pressures are 1.5–2.5 bar (22–36 PSI) depending on terrain, rider weight, and preference. Lower pressures improve grip and comfort on trails; higher pressures reduce rolling resistance on tarmac. Never exceed the maximum pressure marked on the tyre sidewall.

What rim size does this tyre fit?

The Smart Sam HS 624 (65-584) fits 27.5" rims (also known as 650B, ETRTO inner diameter 584 mm). It is not compatible with 26", 29", or 700c rims. Always verify your rim's ETRTO diameter before purchasing.

Is this tyre suitable for a heavy e-MTB?

Yes. The Smart Sam HS 624 is specifically optimised for e-MTB use. Its reinforced construction and Addix Performance compound are designed to handle the additional weight and torque of motor-assisted bikes. The E-25 certification confirms it meets the safety and durability standards required for Pedelec use.

When will this tyre be available?

This tyre is available from Week 41/2026 (from 05.10.2026). You can pre-order now to secure your allocation. Orders will be fulfilled from the availability date.

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 HS 624 (E-25) – 27.5 x 2.60" | 65-584 | Wire Bead | E-Bike Ready | Black