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Cycling navigate_next Components navigate_next Rear derailleurs navigate_next MTB 10-11-12 speed navigate_next microSHIFT XLE RD-M66M rear derailleur, 11-speed, medium cage
microSHIFT

microSHIFT XLE RD-M66M rear derailleur, 11-speed, medium cage

38.99 €
RRP 47.99 €
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From 19.10.2026 (Monday) Check availability
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Rating (8)
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4,8/5

microSHIFT XLE RD-M66M Rear Derailleur

The XLE series of rear derailleurs is characterized by top quality, durable metal construction, and compatibility with Shimano MTB drivetrains, giving you maximum flexibility when building a new bike or repairing an existing one.
Product features
Reliable ratchet clutch is easily adjustable and repairable
Direct cable routing for smooth and responsive shifting
Aluminum body with steel cage
Product details
Groupset microSHIFT XLE
Gears 2x11, 1x11, 3x11
Control type mechanical
Max pinion size 40-46T
Capacity 41T
Material body: aluminum, arm: steel
Weight 309 g
product ID 133799
Product rating  (8 ratings)
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nevenw nevenw • 19 May 2026 at 9:59
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Variant microSHIFT XLE RD-M665L prehadzovačka, 11-kolo, dlhé ramienko

Very good in combination with Microshift dropbar shifters XLE SB-M110. It worked better than Shimano rear derailleur RD-M7000.

19 May 2026 at 9:59
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adisson adisson • 8 July 2026 at 20:32
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Variant microSHIFT XLE RD-M665L prehadzovačka, 11-kolo, dlhé ramienko

RO Foarte bun. Tragere directa si capacitate mare, arata mai bine decat Deore anterior care se si chinuia grav.

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8 July 2026 at 20:32
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martinduracka691 martinduracka691 • 27 May 2025 at 9:41
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Variant microSHIFT XLE RD-M665L prehadzovačka, 11-kolo, dlhé ramienko

Great derailleur, maximum satisfaction for a great price

Super prehadzovak, maximalna spokojnost za super cenu

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27 May 2025 at 9:41
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JS-MS JS-MS • 3 June 2024 at 12:02
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Variant microSHIFT XLE RD-M665L prehadzovačka, 11-kolo, dlhé ramienko

It's enough for my driving, the price was 25e, so I didn't hesitate

Na moje jazdenie stačí ,cena bola 25e tak som neváhal

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3 June 2024 at 12:02
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Othello Othello • 11 April 2025 at 9:18
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Variant microSHIFT XLE RD-M665L prehadzovačka, 11-kolo, dlhé ramienko

Everything is great, just the weight....

Vsetko super akurat ta vaha....

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11 April 2025 at 9:18
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jindrichschwarz jindrichschwarz • 10 June 2025 at 13:30
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Variant microSHIFT XLE RD-M665L prehadzovačka, 11-kolo, dlhé ramienko

It works without any problems, even after about 2 thousand km on gravel, I can recommend it.

Funguje bez problémů, i po cca 2 tis. km na gravelu můžu doporučit.

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10 June 2025 at 13:30
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agressor agressor • 28 august 2025 at 21:09 •replyjindrichschwarz
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SK Tak prečo len jednu hviezdičku?

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28 august 2025 at 21:09
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simonkapral52 simonkapral52 • 17 august 2026 at 12:21
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Variant microSHIFT XLE RD-M665L prehadzovačka, 11-kolo, dlhé ramienko

17 august 2026 at 12:21
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M_Sobota M_Sobota • 5 november 2024 at 19:16
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Variant microSHIFT XLE RD-M665L prehadzovačka, 11-kolo, dlhé ramienko

5 november 2024 at 19:16
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Product questions
Erdogan Erdogan • 21 august 2025 at 23:06
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Variant microSHIFT XLE RD-M665L prehadzovačka, 11-kolo, dlhé ramienko

SK Dobry den,
je mozne tuto prehadzovacku pouzit s kombinaciou dvojprevodnika 26-36 a s kazetou 11-46T?
Dvojprevodnik: https://www.mtbiker.sk/shop/komponenty/kluky-a-prevodniky/mtb/2-prevodnik/shimano-deore-fc-m5100-2-kluky-2x11-36-26t-p111613.html
Kazeta: https://www.mtbiker.sk/shop/komponenty/kazety-a-pastorky/mtb-10-11-12-rychlostne/microshift-g-series-cs-g113-kazeta-11-kolo-p177600.html#reviews

Radenie predpokladam moze byt lubovolne 11 prevodove od Shimana (napr. rada Deore).

Dakujem za odpoved.

Pekny den.

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21 august 2025 at 23:06
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sylogista sylogista • 22 august 2025 at 0:26 •replyErdogan
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PL 1. Max cog for the derailleur is 40-46T (according to datasheet).
I've 40T and looks like datasheet doesn't lie – derailleur can handle your 46T.
In my honest opinion – it'll do without a problem.
I think it can handle even 50T, but Microshift didn't admit it because it could be a bit too close to off-limit of the fast, perfect work. (Just like 9-speed microshift derailleur can handle 10-speed)

2. Max capacity is 47T (according to datasheet)
I've 45T capacity (30-46T and 11-40T) and it works great. Even test front: 46T, rear: 40T is, derailleur is working well.
At equally unrealistic and stupid test with front: 30, rear: 11 it's still ok! The cage is truly long.
You've EXACTLY the same capacity – 45T. So it'll work and I vouch for it

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22 august 2025 at 0:26
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Erdogan Erdogan • 22 august 2025 at 9:08 •replysylogista
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SK Thank you so much for informations

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22 august 2025 at 9:08
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claudinkop claudinkop • 5 July 2026 at 20:57
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Variant microSHIFT XLE RD-M665L prehadzovačka, 11-kolo, dlhé ramienko

https://www.mtbiker.sk/shop/komponenty/radenie/mtb-10-11-12-rychlostne/microshift-xle-xpress-sl-m851r-radenie-prave-1x11-p199113.html will this shift be good for this derailleur?

https://www.mtbiker.sk/shop/komponenty/radenie/mtb-10-11-12-rychlostne/microshift-xle-xpress-sl-m851r-radenie-prave-1x11-p199113.html bude tento shift dobry pre tuto prehadzovacku?

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5 July 2026 at 20:57
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gronkjear gronkjear Customer support • 7 July 2026 at 12:11 •replyclaudinkop
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SK Dobry den prajem, ano, radenie bude s danou prehadzovackou fungovat bez problemov.

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7 July 2026 at 12:11
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jozefsakala9_fu4m jozefsakala9_fu4m • 22 July 2025 at 6:09
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Variant microSHIFT XLE RD-M665L prehadzovačka, 11-kolo, dlhé ramienko

SK Je táto prehadzovačka vhodná pre pastorok kazety 50 Z. Ak nie čo . mi poradite ?

ďakujem!

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22 July 2025 at 6:09
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gronkjear gronkjear Customer support • 22 July 2025 at 10:32 •replyjozefsakala9_fu4m
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SK Dobry den,

prehadzovac zvladne max. 46T pastorky.
Ake mate radenie?

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22 July 2025 at 10:32
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jozefsakala9_fu4m jozefsakala9_fu4m • 24 July 2025 at 16:32 •replygronkjear
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SK Radenie Simano XT

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24 July 2025 at 16:32
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gronkjear gronkjear Customer support • 1 august 2025 at 13:40 •replyjozefsakala9_fu4m
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SK Potom v 11-speed jedine Deore prehadzovacka, ktora zvladne az 51T pastorky - https://www.mtbiker.sk/shop/komponenty/prehadzovacky/mtb-10-11-12-rychlostne/shimano-deore-rd-m5100-sgs-prehadzovacka-11-kolo-p109395.html

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1 august 2025 at 13:40
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Indurain Indurain • 30 august 2021 at 21:47
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Variant microSHIFT XLE RD-M66M prehadzovačka, 11-kolo, stredné ramienko

hello, is this derailleur compatible with SH DEORE 1x11 steering? Thank you for your response

zdravím, je táto prehadzovačka kompatibilná s riadením SH DEORE 1x11? Ďakujem za odpoveď

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30 august 2021 at 21:47
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gronkjear gronkjear Customer support • 30 august 2021 at 21:55 •replyIndurain
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SK Dobrý deň prajem,

tak ako je aj v popise, tak výrobca špecifikuje, že prehadzovač je kompatibilný so všetkými 11-rýchlostnými MTB radeniami Shimano.

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30 august 2021 at 21:55
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Indurain Indurain • 30 august 2021 at 22:07 •replygronkjear
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SK Ďakujem. Trochu ma zneistilo to slovné spojenie "shimano mountain", ale už som to pochopil.

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30 august 2021 at 22:07
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kloakan kloakan • 27 July 2021 at 9:51
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Variant microSHIFT XLE RD-M66M prehadzovačka, 11-kolo, stredné ramienko

Hello, is this derailleur compatible with the sram gx 11sp? thank you

zdravim,je tato prehadzovacka kompatibilna s radenim sram gx 11sp? dakujem

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27 July 2021 at 9:51
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gronkjear gronkjear Customer support • 27 July 2021 at 10:09 •replykloakan
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SK Dobrý deň,

podľa špecifikácie výrobcu bohužiaľ táto prehadzovačka s radením SRAM kompatibilná nie je.

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27 July 2021 at 10:09
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kloakan kloakan • 27 July 2021 at 11:42 •replygronkjear
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SK dakujem za rychlu odpoved

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27 July 2021 at 11:42
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kindo92 kindo92 • 19 May 2022 at 17:06
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Variant microSHIFT XLE RD-M66M prehadzovačka, 11-kolo, stredné ramienko

Does this switch also have a brake. Or at least resist?

Má tento šalter aj nejakú brzdu. Alebo aspoň kladie odpor?

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19 May 2022 at 17:06
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Michales Michales Customer support • 20 May 2022 at 11:05 •replykindo92
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SK Dobrý deň,
brzdu na ramienko táto prehadzovačka nemá, ale ramienko odpor kladie - napína reťaz ako aj iné prehadzovačky.

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20 May 2022 at 11:05
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kindo92 kindo92 • 20 May 2022 at 11:08 •replyMichales
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SK Ďakujem. Takže na niečo ako DH trate určite nie.

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20 May 2022 at 11:08
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Michales Michales Customer support • 20 May 2022 at 12:07 •replykindo92
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SK Dobrý deň,
na DH radšej s brzdou.

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20 May 2022 at 12:07
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pestos-j pestos-j • 11 october 2026 at 7:29
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Variant microSHIFT XLE RD-M665L prehadzovačka, 11-kolo, dlhé ramienko

CS Dobrý den, je součástí balení páčka řazení?

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11 october 2026 at 7:29
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anetazichova anetazichova Customer support • 12 october 2026 at 13:23 •replypestos-j
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CS Dobrý den,

páčka řazení není součástí balení.

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12 october 2026 at 13:23
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microSHIFT
MTB 10-11-12 speed microSHIFT
This Taiwanese brand mircoSHIFT has been making components since 1999. Even though they are not very popular on the bike market, their reputation in the cycling industry is excellent. They offer shifters, rear and front derailleurs and cassettes. Myna global manufacturers use their components.
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