Bridgestone Potenza Sport vs Michelin Pilot Sport 4S

Both are high-performance summer tires and due to their robust tread compounds, these tires maintain functional traction even in high temperatures during blazing summer and provide an optimized driving experience on dry as well as wet paths. Michelin Pilot 4S offers smooth driving on-road, owing to its awesome grip on dry and wet pavement.

On the other side, Potenza provides firm handling on the slippery road and shows better fuel economy.

Comparing Michelin Pilot Sport 4s with Bridgestone Potenza Sport

Michelin Pilot Sport 4s

Vs

Bridgestone Potenza Sport

Michelin Sport 4S characterizes an asymmetrical tread with deep grooves of different widths, uninterrupted tread ribs marked with crisp sipes along their edges, and bulky shoulders. Its contact patch is higher than its competitor due to the presence of grooves with varied broadness, hence, it shows better grip on dry surfaces. While rolling on wet tracks, increased depth of sipes and voids give it the advantage of better hydroplaning resistivity and account for a firm grip on a wet road as well. However, a comparatively lesser number of lateral grooves among shoulders make it stand behind in competition while concerning wet tracks.

Bridgestone Potenza has a classic summer-tire look with three continuous, circumferential ribs in the central part, four grooves, curvy sipes along edges of central ribs, and large shoulders on their sides. A high void ratio due to broad grooves decreases its contact patch and result in lesser dry grip in comparison. It shows a reliable wet grip as it has wavy sipes, one narrow and three broad grooves to evacuate water through the tread, and resists hydroplaning, however, lesser tread depth reduces its water holding capacity and makes its grip on wet roads lesser than its competitor.

Road Grip Comparison

Pilot 4S shows a superior capacity to grip on the dry road due to its low void ratio. As two of its grooves are less wide, its contact patch is maximized and tread holds on the dry surface strongly while moving over the pavement. It covers only 78.10 feet when brakes are applied at the speed of 50 mph. Comparatively, a smaller wet braking distance of 114.80 feet when stopping from 50 to zero mph makes 4S a better choice for a road trip on a rainy day. It has deeper grooves and sipes which provide efficient water removal on a wet road as compared with its competitor.

Potenza exhibits a lesser contact patch because it has three broad grooves and only one groove with a smaller width, therefore, its tread grips over the dry surface is less strong than its competitor. It covers a comparatively larger braking distance of 80.20 feet when stopping from 50-0 mph on a dry road. On a wet road, its sipes and voids provide hydroplaning resistance by wiping off the water but its ability to do so is lesser in comparison due to its relatively lesser tread depth. Its wet braking distance is recorded 120.10 feet when it comes to rest from 50 mph on a wet road.

Handling Comparison

Both of these tires show good ability to manage steer response on a dry road as both have bulky shoulders. However, Michelin 4S has an even larger contact patch of shoulders which results in more lateral stability and fully controlled dry handling along a corner. Its lap time is estimated at 30.08 seconds. On the other side, high contact patch makes the void ratio lower because it has a comparatively less number of sipes along its shoulders to account for wet traction and this eventually leads to less firm steer handling than its competitor. Its lap time on a wet road is 33.82 seconds.

Potenza sport has more voids among its relatively smaller shoulder lugs as a result contact patch of its tread is reduced, leading to lesser traction when the vehicle moves along a corner on a dry road. Its lap time on a dry track is 30.38 seconds. Conversely, its wet handling is supreme as comparatively more grooves and sipes are marked among its shoulders and their water wiping efficiency offers more stability and control while taking turns on the wet road.  Its lap time on a wet road is recorded 33.46 seconds.

Comparison of Hydroplaning Resistance 

Sport 4S provides supreme resistance against hydroplaning due to its higher tread depth. Its relatively deeper voids offer more vacuum for channeling water easily through the tread and safeguard the vehicle from slipping off on a wet road.

In comparison, Potenza has relatively broad but shallow grooves (there is a difference of 1.5/32’’ in tread depth of tested sizes), leading to reduced ability to hydroplaning resistance as its channels offer lesser space for the removal of water, owing to their lower depth.

Comparison of Rolling Resistance

Owing to its relatively low void ratio, Pilot 4S faces more friction while rolling over the road because more area of tread is connected with the surface directly. Hence, more fuel is required to compensate for the energy lost while overcoming this resistance.

The high void ratio of Potenza reduces the contact patch of its tread which faces lesser resistance while rolling over. As less hysteresis (energy loss) is produced while moving, consequently, less amount of fuel is consumed.

Comfort and Noise Comparison

Sport 4S produces lesser noise on road due to its high contact patch and low void ratio. Half of its voids are narrow and offer only a little space for the resonation of air particles, leading to minimal tire sound when it rolls at high speeds. Due to increased contact patch and tread depth, it provides better grip and more comfort while driving on road.

Potenza is a relatively noisier tire as a smaller contact patch has made its void ratio higher. It has more broad grooves which present free space for reflection and resonation of sound waves through them, leading to loud noise. The ride comfort offered by Potenza is relatively lesser due to its reduced on-road traction owing to its lesser contact patch.

Durability and tread wear

Although Sport 4S faces more rolling resistance yet its sturdy tread composition makes it a more durable summer tire in comparison. Its tread features side-by-side Le Mans-derived compounds such that the low void side utilizes a dry-focused hybrid rubber while the other side is a silica-infused wet compound. Internal construction employs a single-ply polyester with cord filament, twin high-strength steel belts reinforced by a spirally wound Nylon hybrid. This blend of sturdy polymers enables the tread to withstand dry conditions, road friction as well as chips and bruises, leading to slower wear. It is also backed by a mileage warranty for tread life up to 30,000 miles.

Potenza is also a fairly durable tire due to its reinforced internal construction. Its tread is made from a one-ply polyester casing with twin steel belts which are further strengthened by an Aramid-Nylon cap ply. However, its tread polymer is not as strong as its competitor’s, so, it wears down relatively quickly. It does not have any treadwear warranty from its manufacturer.

Price

Potenza sport is more budget-friendly among these tires as it is not only priced lesser but also has the advantage of a better fuel average. On the other side, Michelin 4S costs a little higher but also exhibits superior on-road grip and has a tread life warranty as well.

Quick Summary

  • Bridgestone Potenza Sport and Michelin Pilot Sport 4S are both max-performance summer tires.
  • Michelin 4S shows a better grip on dry as well as wet roads.
  • Potenza provides superior steer handling on wet pavement.
  • Sport 4S faces higher rolling resistance on road.
  • Potenza makes less noise and costs less money to buy.