···
Log in / Register

What are the Shimano derailleur grades?

5 Answers
Stewart
07/29/25 3:53am
Shimano derailleurs are classified into 8 grades, ranked from highest to lowest: XTR, XT, LX, Deore, Alivio, Acera, Altus, and Tourney. Additionally, Shimano is a high-end bicycle component manufacturer, specializing in the production and sales of bicycle parts. Regarding the names of Shimano's various grade groups: For mountain cross-country use: The sports-grade mountain cross-country groups, ranked from highest to lowest, are: XTR, Deore XT, Deore LX, Deore, ALIVIO, Acera, ALTUS, TOURNEY. Lower grades like C050 and SIS, which are for civilian use, are not included here. There are also HONE (between XT and LX, suitable for heavy XC and AM), SAINT (between XTR and XT, suitable for AM and FR), DXR for small-wheel bikes, and the less commonly used Capreo. For road use: The sports-grade road groups, ranked from highest to lowest, are: DURA-ACE, Ultegra, 105, TIAGRA, SORA, 2200.
Was this review help?
12
4
Share
DiMarcus
08/12/25 3:18pm
Shimano drivetrains indeed have multiple tiers. Starting from the entry-level, Tourney is primarily used on city bikes, offering simple but less smooth shifting, suitable for casual riders. A step up is Claris, which adds more gear options to make climbing slightly easier. Then comes Sora, which uses aluminum components for enhanced durability—I find it ideal for daily commuters. Tiagra marks a turning point with its 10-speed system, delivering more responsive performance, making it a cost-effective choice for those on a budget looking to upgrade. The 105 series introduces carbon fiber components, offering lightweight and easy maintenance, which I often choose for long-distance rides. The top-tier Ultegra and Dura-Ace are designed for racing, with incredibly precise shifting but at a premium price. Overall, choosing the right tier depends on your riding frequency and needs—like when I upgraded from Sora to 105, it significantly improved my climbing experience.
Was this review help?
10
3
Share
Expand All
EvanAnn
10/02/25 7:52am
When researching Shimano derailleur tiers, I found the technical differences quite crucial. Entry-level models like Claris only have 8-9 speed gears, mostly made of steel – a bit heavy but sturdy and durable. Sora switches to aluminum alloy, slightly reducing weight and improving handling flexibility. The mid-range Tiagra upgrades to 10-speed with narrower gear spacing, making shifts smoother. The iconic 105 series uses carbon fiber shifters and wheelsets, drastically cutting weight while achieving near-silent gear changes – I found it exceptionally effortless during long-distance rides after testing. Ultegra takes it further with 11-speed electronic shifting, delivering precision control like a mechanical artwork. Dura-Ace represents the top tier, featuring ultra-lightweight titanium components built for professional riders pursuing peak performance. Remember that higher tiers mean escalating maintenance costs – my Ultegra requires regular cleaning to prevent dust interference.
Was this review help?
19
4
Share
Expand All
MicahLee
11/16/25 2:46am
For budget-conscious individuals, choosing a Shimano derailleur grade comes down to cost-performance ratio. I find Claris the most affordable, with a reasonable price and basic functionality sufficient for commuting or light riding. Sora is slightly more expensive but adds smoother shifting, making it suitable for beginners. Tiagra is the king of value for money, with its 10-speed system handling hills effectively without breaking the bank—I recommend it for frequent travelers. The 105 series, despite its higher premium, features durable carbon fiber components that save on replacement costs in the long run. Ultegra and Dura-Ace, while top-tier, come with steep prices and are unnecessary unless you're a competitive racing enthusiast. When upgrading, consider gear count: 8-9 speeds in lower grades are adequate, while 10-11 speeds enhance the sense of speed. My advice is to start with Tiagra and upgrade gradually based on needs to avoid unnecessary spending.
Was this review help?
18
5
Share
Expand All
Anne
11/16/25 2:48am
As a frequent bicycle maintainer, I find that Shimano derailleur grades affect maintenance difficulty. Entry-level models like Tourney have simple structures but are prone to rust, so I regularly apply oil to extend their lifespan. Claris and Sora require shift cable calibration, which is easy to perform but may need annual adjustments. The Tiagra system is more complex, with faster gear wear requiring frequent checks. The 105 series uses hybrid materials to mitigate issues but demands more careful cleaning. Ultegra's electronic components offer precision but are sensitive to moisture, so I wipe the connectors after every rain. Dura-Ace requires professional tools for tuning, making it suitable for experienced users. Upgrade advice: Jumping from Sora to Tiagra significantly improves the experience—I personally found it much more hassle-free after switching. If the budget allows, go straight for the 105 series, as its durability reduces frequent maintenance. Higher grades aren’t always better; improper maintenance can turn them into a burden.
Was this review help?
13
0
Share
Expand All
More Forum Discussions

How is the quality grade of gasoline engine oil classified?

API grades represent the quality levels of engine oil. Here are the relevant details: 1. API engine oils are divided into two categories: the 'S' series represents oils for gasoline engines, and the 'C' series represents oils for diesel engines. 2. The oil grade levels are classified as: SA, SB, SC, SD, SE, SF, SG, SH, SJ, SL, SM, and SN. The later the letter in the alphabet, the higher the grade, with SN being the highest grade oil currently available. 3. The 'C' series represents oils for diesel engines, with specifications including: API CA, CB, CC, CD, CE, CF, CF-2, CF-4, CG-4, CH-4, and CI-4.
10
4
Share

What does 'DPF regeneration in progress' mean?

DPF regeneration in progress refers to when a certain value is reached, it will cause a decline in engine performance and fuel economy, among other aspects. The following are the methods of DPF regeneration: 1. Differential pressure sensor: Monitors exhaust backpressure through the differential pressure sensor. When the backpressure rises to a certain level, the captured particles are burned into CO2 and expelled. 2. Particulate filter: This particulate filter uses an electric heating method to create high temperatures, burning the captured particles into CO2 and expelling them. 3. Fuel: Additives are mixed into the fuel to lower the combustion temperature of particles, allowing the captured particles to burn into CO2 and be expelled at a lower temperature.
18
0
Share

What are the precautions for driving through waterlogged areas?

When driving through waterlogged sections, the key point is to prevent water from entering the engine's intake pipe. If a large amount of water enters the intake pipe, it can reach the engine. Since water is incompressible, it can bend components such as connecting rods. Specific guidelines are as follows: 1. Check water depth: When the water depth is below half of the wheel height, pass through using a low gear with high RPM and low speed. If the water level approaches half of the car's tire height, it's best not to drive. If the wading depth exceeds the hood, immediately turn off the engine, exit the vehicle, and push it to the roadside. 2. Wading through water: When multiple vehicles are wading, do not enter the water simultaneously. Wait for the preceding vehicle to reach the opposite shore before the following vehicle enters, to prevent the preceding vehicle from stopping due to malfunction and forcing the following vehicle to stop in the water.
13
1
Share

What are the dimensions of a fire truck turnaround area?

A fire truck turnaround area, simply put, is a space for fire trucks to make U-turns. The maximum length of a fire truck is 13.4m, the maximum width is 4.5m, the maximum height is 4.15m, the maximum load capacity is 35.3t, and the maximum turning diameter is 24m. The minimum turning diameter of a fire truck is 10m, the minimum length is 5.8m, the minimum width is 1.95m, and the minimum height is 1.98m. Here is additional information: 1. Dimensions of the turnaround area: Different models of fire trucks may require different turnaround areas. However, since most fire truck manufacturers now produce large fire trucks, and small fire trucks are gradually being phased out, the recommended dimensions for a dead-end fire truck turnaround area are 15m×15m. For large fire trucks, the turnaround area should not be less than 18m×18m. 2. When setting up a turnaround area at the end of a road: The area of the turnaround space should be determined based on the vehicle's minimum turning radius and the road width. A minimum turning radius of 6 meters for fire lanes can meet the minimum turning requirements of fire trucks.
12
5
Share

What are the possible reasons for a Buick LaCrosse not responding when starting?

Circuit, fuel system, or starter failure may cause this issue. Below is relevant information: 1. Solutions: Check the circuit to see if the spark plugs are firing normally and if there is any leakage. Verify whether the high-voltage wires have high-voltage sparks, and inspect the ignition coils if equipped. Examine the fuel system by opening the engine's fuel inlet pipe and turning the key to start—check if fuel comes out. If not, it may indicate a clogged fuel line or a non-functioning electronic fuel pump. Another rare possibility is the ECU being locked in anti-theft mode. 2. Vehicle safety inspection: Check whether the engine oil, brake fluid, gasoline, and coolant levels are normal; look for any leaks. Inspect the braking system for proper function and effectiveness; check for air leaks in the air pump and air reservoir; verify tire pressure is normal; ensure tire fastening screws are not loose; and confirm the spare tire is in good condition. Check the functionality of turn signals, brake indicators, headlights, windshield wipers, and the horn.
14
2
Share

Why is the car air conditioner not working?

There are several reasons why a car air conditioner may not be functioning: 1. Insufficient refrigerant: Typically, terms like refrigerant, coolant, Freon, or refrigerant gas all refer to the air conditioning refrigerant. Solution: Add air conditioning refrigerant. 2. Improper tension of the car air conditioner belt: If the belt is too tight, it can directly cause the compressor to seize and stop running; if the belt is too loose, it can lead to slipping in the power transmission of the compressor, resulting in intermittent cooling and reduced power. Solution: Adjust the belt tension. 3. Issues with the electrical system: For example, if there is a short circuit or open circuit in the wiring, the power transmission path is directly lost, and the electromagnetic clutch cannot properly control the compressor's operation. Since the actual vehicle cannot be seen, an accurate judgment cannot be made. Solution: It is recommended to promptly visit a professional auto repair shop or a 4S store for inspection by the staff, and follow their diagnosis.
19
4
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.