Instruct: Classify an Amazon review into positive or negative sentiment.
Query: Not Foldable

Good tires for different terrain.Very versatile when you use your bike for diferent rides, including city, mud, rocks etcVery good grip and traction in mud, wet and gravel tracks. A little noisy in the street but it's obvious because the knobs.With this you don't have to change them every time you have diferent ride plans. No any flats till today (almost 1000 km in diferents surfaces)Just 4 stars because they aren't foldable