Dear gods, introduce the bicycle tower wheel, which comes from the brand. Materials. Function. Step by step analysis and classification. The more detailed, the better. Thank you for your hard work.

I don't know whether you are talking about mountain bikes or road bikes, and generally this kind is not called tower wheels, but flywheel.

Shimano sports-grade mountain cross-country kit, the names from low to high are: TOURNEY；; Altus; Acera. livio; DeoreDeore LXDeore XTXTR； Lower civil variable speeds such as C050 and SIS are not included, and there is HONE (between XT and LX, suitable for heavy XC and AM); SAINT (between XTR and XT, applicable to AM and FR); DXR and capreo suitable for BMX are rarely used.

The names of Shimano Highway Suite from low to high are: 2200, Sola, Tiagra, 105, Ur Tegla and Dura-Ais; ; Excluding civil lower layers A050 and SIS.

There is nothing to say about the expressway, mainly mountain bikes.

TOURNEY is not a complete set of packages strictly, and its positioning is that the entry-level sports version supports 6/7 speed.

There is no obvious difference between Acer and ALTUS, and the price difference is small. Can be simply understood as the same level. Acer is mainly equipped with 8-speed, while Acer and ALTUS are mainly equipped with 7-speed (in fact, they are both compatible with 7-speed and 8-speed). Compared with TOURNEY, it has increased 8-speed support. Acer's back-dial connecting pin has a sleeve coated with fluorine, which is less wear-resistant and more wear-resistant. ALIVIO is also an 8-speed kit. Now, M4 10 is a complete suite. In addition to the characteristics of Acera, it is superior to Acera in that the matching HG50 flywheel is chrome plated.

Deore starts from Deore and all adopt MEGA 9 system, all of which are 9-speed. In addition to the characteristics of ALIVIO, Deore is superior to ALIVIO in that

The rear idler is made of stainless steel screws and chrome-plated steel bearings, and the tab pivot is sealed with O-ring, with low standard design.

The 9-speed HG flywheel HG50-9 is made of nickel-plated steel.

In addition to the characteristics of Deore, Deore LX is superior to Deore in that

M580 flywheel is made of pearlescent steel, and the flywheel is made of alloy bracket.

XTR not only contains the characteristics of Deore XT, but also has advanced characteristics that XT does not have.

Flywheel adopts superhard alloy bracket, and the largest four teeth are titanium alloy.

The above mainly introduces Shimano and SRAM (these two brands are the top brands of mountain bike accessories) from low to high.

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