Tire Evaluation – Vittoria Bomboloni TNT

Even though an increasing number of manufacturers now provide a fat bicycle tire, the Bomboloni is Vittoria’s response to this increasingly common bicycle discipline. The Vittoria Bomboloni provides a 120 TPI tubeless-ready casing using a quick rolling alternating centre tread and ‘automotive motivated’ snow-tire tech. Sad to say, the Bomboloni does not utilize Vittoria’s brand new Graphene (G ) chemical but just a straightforward “Dual-Compound” compound. As anticipated from a fat bicycle tire, the Bomboloni is only accessible with a reinforced TNT casing.

It is a pity the Bomboloni does not utilize the newest G chemical as it is the only chemical (in the moment) that may compete with the Schwalbe PaceStar and Continental Black Chili chemicals in the off-road class (MTB summary). Along with not using the G chemical, the Bomboloni also has a rather large weight of 1525 g that’s enormous specially for a folding bead tire. Both of these factors do not bode well for its operation from the rolling resistance evaluations. Let us just run the tests and determine how the Bomboloni performs.

The fat bicycle segment is made possible by Wolf Tooth Components

All rolling resistance evaluations are conducted on our rolling resistance test system. Read our The Evaluation page for a detailed explanation about how we examine tires.

Do not forget to have a look at the review pages to make it simpler to compare all of tires which were examined.

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As mentioned before, the given weight of this 26 x 4.00 Bomboloni is 1525 g; my sample sets 1506 g on the scale. The maximum width of this casing is 95 mm; the knobs stick out a little farther which leads to a maximum tire width of 99 mm. The elevation of this scooter is 81 mm. The size dimensions are pretty much spot to get a 26 x 4.00 rated tire.

The knobs at the middle of the bicycle have a height of 3.1 mm that’s on the small side when compared to another fat bicycle tires. The advantage knobs have a height of 6.5 mm that’s far better than most other fat bicycle tires. The sidewalls have a depth of 1.4 mm that’s adequate as present “gold standard” fat bicycle psychologist (Schwalbe Jumbo Jim SnakeSkin) includes sidewalls which are somewhat thinner at 1.05 mm.

I already worried the Bomboloni could not compete at the rolling resistance test and the evaluation confirmed my feelings. In the high air pressure of 20 psi / 1.4 pubs, rolling resistance comes in at 33.4 g Vs 23.2 g for your Schwalbe Jumbo Jim SnakeSkin (read review) -that makes a 10.2 volt power reduction. In the bottom (analyzed) atmosphere pressure of 8 psi / 0.6 pubs, rolling resistance comes in at 53.9 g Vs 38.6 g for your Schwalbe Jumbo Jim -that makes a 15.3 volt power reduction.

The 10.2 watts and 15.3 volt electricity reduction (per tire!) , when compared to this Schwalbe Jumbo Jim SnakeSkin, is important when taking into consideration the already large reduction fat bicycle tires provide when compared to “routine” MTB tires. When we compare the Bomboloni to fat bicycle tires from some other manufacturers, it works anonymous in the base of the package.

When a tire that’s heavy and also performs bad from the rolling resistance evaluations, the puncture tests can save it as it may be optimized to stop punctures as far as you can. Sad to say, the Bomboloni can not impress from the cessation tests either. Having a puncture resistance tread score of 2 points and a puncture resistance sidewall score of 6 factors, it functions better than ordinary. Although better than ordinary is great, some tires with a lower rolling resistance and reduced weight can outperform the Bomboloni from the puncture tests too. You can read more about nashbar earl grey floor pump at

The Vittoria Bomboloni performs anonymous and ends up close to the base of the graphs in the rolling resistance evaluations. In comparison to the current “gold standard” fat bicycle tire, that’s that the Schwalbe Jumbo Jim SnakeSkin (read review), you are going to need to conquer an additional 15 watts of energy reduction each flight. From the puncture tests, it functions marginally above average but does not impress. In addition to the high rolling resistance and typical puncture resistance, the Bomboloni is a really heavy tire too. I really don’t find a reason to recommend this drill.

I expect Vittoria will release a fat bicycle scooter which makes use of the brand new 4C G chemical that additionally they use on a few of the MTB tires. If they’re also able to get the weight down to competitive levels, they might have a winner.