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Bicycle derailleurs
The rear derailleur is part of the bike's drive system, it is responsible for shifting the chain between the different gears on the rear cassette. This precision device plays a key role in ensuring smooth and efficient gear changes, allowing cyclists to adapt to different terrains and optimize pedalling cadence. Choosing the right rear derailleur for a bicycle is important, and the following features must be taken into account:
- Bike type: Different types of bikes (road, mountain, hybrid) have specific requirements for rear derailleurs. Make sure the derailleur is compatible with the bike frame.
- Compatibility: Make sure the derailleur fits your cassette size and is compatible with the shifter.
- Weight: Consider the weight of the derailleur, especially for racing bikes.
- Reputable brands: Opt for renowned brands known for quality and durability such as Shimano, SRAM or microSHIFT.
- Maintenance and service: Consider ease of maintenance and availability of spare parts. A derailleur that is easy to set up and service can save you time and money in the long run.
If you consider these factors, you will be better prepared to choose a rear derailleur that suits your bike, riding style and preferences.
How does the derailleur work?
The derailleur is connected to the lever by means of a cable. As the rider operates the lever, the cable tension changes, causing the derailleur to shift the chain to a different gear. The derailleur has guide pulleys and a shoulder that control the movement and adjustment of the chain on the cassette.
What are the main differences between road and mountain bike derailleurs?
The main differences between road and mountain bike rear derailleurs are as follows:
- Gear range: MTB derailleurs usually have a larger gear range compared to road derailleurs. This is because mountain biking often involves steeper climbs and uneven terrain, which requires lower gears to climb. Road derailleurs are designed for higher speeds on smoother surfaces and generally have a narrower gear range.
- Length of chain link: MTB derailleurs typically have a longer chain link compared to road derailleurs. This longer chain stay accommodates a larger range of mountain bike gears, allowing for more chain slack and the ability to work with larger chainrings and cassettes. Road derailleurs typically have shorter cages to accommodate smaller gear ranges and maintain tighter chain tension.
- Shift speed: Road derailleurs are usually designed for faster shifting, as road cycling frequently involves rapid gear changes during sprints or attacks. MTB derailleurs may have a slightly slower shift due to the need for more precise and reliable shifting, especially in difficult off-road conditions.
- Durability and protection: MTB derailleurs are built to withstand tough off-road conditions, with stronger materials and additional impact protection. Road derailleurs prioritize weight savings and aerodynamics, which can make them more susceptible to damage in rough terrain.
- Clutch mechanism: Many modern MTB derailleurs are equipped with a clutch mechanism that improves chain holding, especially on bumpy roads. This feature is not commonly found on road derailleurs, as road cycling involves riding on smooth surfaces and saving weight.
Is it necessary to lubricate the derailleur?
In principle, it is not necessary to lubricate the teeth of the pulley on the derailleur, it is important to lubricate the chain. As for the derailleur, it is sufficient to lubricate the pulley sliding bushings during regular drive service.
Sale -39% microSHIFT ADVENT RD-M6195M rear derailleur, 9-speed, middle cage
29.99 €
-39%
RRP 64.99 €
Sale -44% microSHIFT ADVENT RD M6195L rear derailleur, 9-speed, long cage
28.99 €
-44%
RRP 64.99 €
-7% Shimano SLX RD-M7100-SGS rear derailleur, 12-speed, OEM
41.90 €
-7%
RRP 89.99 €
-50% Shimano Deore RD-M5100-SGS rear derailleur, 11-speed (OEM)
24.90 €
-50%
RRP 49.99 €
Sale -51% microSHIFT XCD RD-M865M rear derailleur, 11-speed, medium cage
28.99 €
-51%
RRP 73.99 €
microSHIFT SWORD RD-G7005M rear derailleur, 10-speed, medium cage
59.99 €
RRP 74.99 €
Sale -34% microSHIFT RD-M26L rear derailleur, 7/8-speed, long cage
7.89 €
-34%
RRP 14.99 €
Sale -48% microSHIFT XLE RD-M665L rear derailleur, 11-speed, long cage
23.99 €
-48%
RRP 60.99 €
Sale -35% microSHIFT MARVO RD-M46L rear derailleur, 9-speed, long cage
12.59 €
-35%
RRP 25.99 €
Sale -49% microSHIFT MEZZO RD-M36L rear derailleur, 9-speed, long cage
7.99 €
-49%
RRP 20.99 €
savings Shimano Acera M3020 rear derailleur, 7/8-speed, super long cage (SGS)
15.59 €
savings
RRP 33.99 €
Sale -23% microSHIFT Acolyte RD-M5185M rear derailleur, 8-speed, long cage
22.99 €
-23%
RRP 36.99 €
savings Shimano Deore XT RD-M8100 rear derailleur, 12-speed, super long cage (SGS), Shadow+
75.99 €
savings
RRP 135 €
Sale -54% microSHIFT R9 RD-R43M rear derailleur, 9-speed, medium cage
12.39 €
-54%
RRP 32.99 €
-8% CeramicSpeed OSPW RS derailleur cage for Shimano 9250/8150, black
489 €
-8%
RRP 559 €
savings Shimano SLX M7100 rear derailleur 12-speed, long cage (SGS), Shadow+
50.99 €
savings
RRP 93.99 €
savings SRAM Red AXS E1 rear derailleur, 12-speed, no battery
589 €
savings
RRP 849 €
savings SRAM Force AXS E1 Carbon Cage derailleur, 12-speed, no battery
279 €
savings
RRP 399 €
Sale -54% microSHIFT M21 RD-M21L rear derailleur, 6/7-speed, long cage
4.79 €
-54%
RRP 12.99 €
Sale savings SRAM GX Type 2.1 rear derailleur, 10-speed, medium cage
60.99 €
savings
RRP 92.99 €
Sale -51% microSHIFT M21 RD-M21SS rear derailleur, 7-speed, short cage (SS)
4.79 €
-51%
RRP 12.99 €
savings Shimano Alivio RD-M3100 derailleur, 9-speed, super long cage (SGS), Shadow, OEM
23.90 €
savings
RRP 38.99 €
savings Shimano Altus RD-M310 rear derailleur, 7/8-speed, medium cage (GS), black
15.99 €
savings
RRP 29.99 €
savings Shimano Deore RD-M5120-SGS rear derailleur, 11-speed, Shadow+
33.99 €
savings
RRP 55.99 €
savings Shimano XT M8000 rear derailleur, 11-speed, super long cage (SGS), Shadow+
67.99 €
savings
RRP 125 €
savings Shimano 105 RD-R7000 rear derailleur, 11-speed, medium cage (GS), black
41.99 €
savings
RRP 75.99 €
savings Shimano XT RD-M8100/8120SGS/8150 derailleur pulleys, 12-speed
8.99 €
savings
RRP 16.99 €
savings Shimano XT RD-M8130 e-bike derailleur, 11-speed, super long cage (SGS), Shadow+
78.99 €
savings
RRP 135 €
-10% CeramicSpeed OSPW RS ALPHA Team Edition derailleur hanger for SRAM Red/Force AXS, black/biela
from 499 €
-10%
RRP 609 €
savings Shimano SLX RD-M7000 rear derailleur, 11-speed, long cage (GS), Shadow+
48.99 €
savings
RRP 91.99 €
savings SRAM SX Eagle rear derailleur, 12-speed, long cage
63.99 €
savings
RRP 105 €