700C Bike Tires 700x38C 40-622 Gravel Folding Tire Set - Durable Grip

In this review the reviewer looks at the YUNSCM 2-PCS 700C bike tires, a folding 700x38C tire set aimed at riders who want a versatile gravel-capable replacement tire. The bottom line: these tires suit cyclists who ride mixed surfaces and need a balance of rolling efficiency and off-road traction, with the single biggest reason to buy being their combination of a flat center tread for good rolling performance and a pronounced shoulder pattern for reliable grip on unpaved terrain. They are also foldable for easy storage and rated for a 80KG load per tire.

Key Features

• Size compatibility: The 700x38C (40-622) size is compatible with adjacent sizes such as 700x36C through 700x40C, so it fits frames and rims intended for that range without changing ride characteristics significantly.
• Gravel-ready tread: A flat center tread provides steady rolling on asphalt while the large shoulder knobs improve traction and confidence on loose or unpaved gravel sections.
• Durable construction: Made from high-quality rubber and nylon cord technology, these tires offer wear resistance and a strong grip that holds up for regular mixed-surface use.
• Foldable design: The soft wire folding technology lets you store or carry the tires compactly, making them convenient for spares or travel.
• Load and pressure: Each tire supports up to 80KG and can be inflated to 350 kPa (50 P.S.I.), matching common pressure needs for 38C gravel tires.

Who It's For

These tires are best for recreational cyclists, gravel riders and commuters who frequently encounter a mix of paved and unpaved surfaces and want a resilient, all-around replacement tire. The design is particularly well suited to riders who value a balance between rolling efficiency on roads and grip on loose gravel, plus those who need a foldable spare for touring or bikepacking.

Racers who demand the lightest race rubber or riders who need tubeless-ready race-specific setups may prefer a purpose-built racing or dedicated tubeless gravel tire. Also, if a perfectly symmetrical tread pattern is essential, consider models sold in exact matching pairs as noted by the manufacturer.

Pros & Cons

Pros

• Good mix of rolling performance and off-road traction thanks to the flat center and large shoulder pattern.
• Durable rubber and nylon cord construction for wear resistance on mixed terrain.
• Foldable for compact storage and easy transport as a spare.
• Wide compatibility across 700x36C to 700x40C sizes simplifies replacement choices.

Cons

• The folding wire section may not lie completely flat out of the box and requires gentle reshaping for perfectly even installation.
• Not explicitly described as tubeless-ready, so tubeless conversion could be limited without further information.

Specifications

Brand	YunSCM
Model	Y-1005 (700x38C, 40-622)
Size	700x38C (compatible with 700x36C-700x40C)
Maximum load	80 KG per tire
Maximum pressure	350 kPa (50 P.S.I.)
Construction	High quality rubber with nylon cord, folding wire technology

Our Verdict

The YunSCM 700x38C folding tires are a practical, value-oriented choice for mixed-surface riders who need dependable grip on gravel and reasonable rolling speed on pavement. They are well suited as replacement tires or travel spares thanks to the foldable design and wide size compatibility, offering good durability for everyday and light off-road use.

Frequently Asked Questions

Are these tires tubeless-ready?
The product description does not state tubeless compatibility explicitly, so assume they are standard clincher folding tires unless the seller confirms tubeless-ready construction.

What pressure should I run?
They are rated to 350 kPa (50 P.S.I.); actual pressure should be adjusted by rider weight and terrain, lower for gravel traction and higher for smoother road rolling.

Will they fit my rim if I currently use 36C or 40C tires?
Yes, the 700x38C size is compatible with sizes from 700x36C to 700x40C and should fit frames and rims designed for that range.