Ainda não utilizei, mas para suplente não e muito grande nem pesada.

Ottimo prodotto e ottimo venditore

I like that these tubes cover 20mm to 28 mm. Valves needed to be lubed and tightened, but have been perfect ever since.

Vae de route

I've ordered the 700 x 20-28, since I just got a Trek Domane with 28-width tires, and the Michelin tubes I normally use on my Emonda are allegedly only useable up to a 25 width. After hunting around, the Michelin 28's were too pricey and would take too long to arrive. When I saw that this tube was available for better pricing and was 9 grams lighter, I ordered two. Just installed 'em and things are looking good. The two Continental tubes (made in China) are going back! The pump seemed to fly off of the Presta valve during pumping, and that hasn't happened with this Vittoria (a bit less disappointing, being made in Indonesia). And I was glad to get rid of the Continentals also because they're 25-32s, making them wider than this Vittoria, which maxes out at the 28 width. Don't let the unintelligently labeled sizes on Amazon get too confusing; 20/28 is poorly expressed, because that literally is a fraction when a range of 20 to 28 is what is being specified. The "48" (in my case) refers to the stem or core, so don't let that mix you up as to tube width.

Buona qualita

Per ora sono soddisfatto

Good quality