Вопрос по кареткам (керамика, оно надо?

[suschestwo]

Вот натолкнулся на такую каретку. Керамические подшипники. Повышенная жесткость, защищенность от говн, долговечность. Стоят ли они своих 90 баков?
Спецификации на родном для каретки языке. Цвета есть и другие, на фотке красная (есть синии, черные, золотые)
Как Ваше мнение об этом чуде? Или кто пользует ощущения?
Вес 95 грамм и обещают срок службы в 5 раз больше обычного!

Starting Torque:
- Normal Bearing is 0.27
- Tiramic Bearing is 0.20
- The rate = 0.20/0.27*100% = 74%
This means that the Starting Torque of Tiramic Bearing is only 74% of Normal Bearing.

Turing Torque:
- The Normal Bearing is 0.15
- Tiramic Bearing is 0.10
- The rate = 0.10/0.15*100% = 67%
This means that the Turing Torque of Tiramic Bearing is only 67% of Normal Bearing.
Titanium Coating (Races)

- Hardness : HV2800~3000 kg/mm2
- Low Friction Coefficient
- Extremely strong adhesion method: molecular bond to substrate metal
- Titanium coating thickness: 3 µm (0.000118」)
- Able to withstand temperatures up to 600°C (1,100°F) in air.
- Resistant to corrosion and chemical impurities
- Non-toxic
- Metallic gold appearance
- Fatigue resistant
Ceramic Balls

Ceramic Ball Characteristics

- Composition: Si3N4
- Density: 3.2g/cm3
- Vickers: 1700~2700kg/mm2
- Bending Strength: 3500Mpa
- Thermal Expansion coefficient: 3.2x10-6/℃
- Resistance: ＞1014Ω．cm
- Deviation from Spherical Form 0.13 µm
- Surface Roughness(µm Ra) 0.020 and better
- Grade 5 Balls

Brand: Token
Modle: TK877TBT Integrated Bottom Bracket
Size: ROAD BAS 68mm, BSA1.37"x24T for ROAD, CX to fit 68mm Shell
Material: Aluminium cups, Titanium-Ceramic bearings
Compatible: Shimano/FSA compatible
Color: Red

CNC Durable Forged Alumnium Cups
Weight : 95g

It is compatible with the following and many more:
Shimano DURA ACE 7800: SM-FC7800
Shimano ULTEGRA 6600, 6600-G, 6700: SM-FC6600, 6600-G6700
Shimano 105 5600, 5700: SM-FC5600, 5700
Shimano R700
FSA MegaExo Series- K Force, SLK, Gossamer, Energy TOKEN EX 202 Series