SHIMANO

Shimano Deore M5100 11 Speed Groupset Shifter Cassette Chain Rear Derailleur MTB

$348.13 USD

~~$348.13 USD~~ $348.13 USD

Sale Ausverkauft

Versand wird beim Checkout berechnet

Set Includes	Shifter, Cassette/Freewheel, Chain, Derailleur (Rear)
Country of Origin	Japan
Number of Items	4
Compatible Brand	Shimano
Compatible Bike Type	Mountain Bike
Color	Black/Silver
Model	M5100
Material	Alloy, Aluminum Alloy
Part Type	Build Kit/Gruppo

Cassette Shimano M5100 11-51T Shimano M5100 11-42T

Shifter SL-M5100-R with Display SL-M5100-R without Display

Vollständige Details anzeigen

step 1: Quote Or Shop Now
You can place an order directly or contact us via email and whatsapp for a quote
step 2: Confirmation and delivery
After placing an order, we will contact you by email or WhatsApp within three days to provide photos and videos of the product for confirmation and then ship it.

Shimano · Deore M5100 · 11-Speed · MTB Drivetrain

What Is the Shimano Deore M5100 Groupset?

The Shimano Deore M5100 11-Speed Groupset is a complete mountain bike drivetrain package from Shimano's workhorse Deore line. It includes the rear derailleur (RD-M5100-SGS with Shadow RD+ clutch), an 11-speed shifter (SL-M5100-R with gear display option), an 11-speed cassette (CS-M5100 in 11-51T or 11-42T), and an 11-speed chain (CN-LG500 or equivalent). This is the groupset that brought 1x11 wide-range gearing to the budget-conscious trail and enduro rider — no front derailleur needed.

In short: An all-in-one 1x11 drivetrain upgrade for mountain bikes, combining the reliability of Shimano's clutch derailleur technology with a massive 11-51T cassette range that handles steep climbs and fast descents alike.

What Makes the M5100 Worth Considering

1. Shadow RD+ Chain Stabilization

The rear derailleur has an adjustable friction clutch that dampens chain movement over rough terrain. When engaged, it prevents the chain from slapping against the chainstay — a constant annoyance on rocky descents that also damages your frame's paint. The clutch has an on/off switch, so you can disengage it for easy wheel removal.

2. 11-51T Cassette Range in a Single Ring Setup

The 11-51T option gives a 463% gear range — roughly equivalent to what you'd get from a 2x10 setup but without the front derailleur, left shifter, or extra chainring. The 51-tooth low gear paired with a 30T or 32T chainring will get you up almost any fire road or technical climb, while the 11T high gear provides enough top end for most trail riding speeds.

3. Dyna-Sys 11-Speed Cable Pull Ratio

Shimano 11-speed mountain uses a specific cable pull ratio that is NOT compatible with 10-speed or 12-speed shifters/derailleurs. If you are upgrading from Deore M6000 (10-speed) or SLX M7000 (11-speed), the shifter and derailleur must match — you cannot mix a 10-speed shifter with an 11-speed derailleur or vice versa.

What Is Included

Rear Derailleur	Shimano Deore RD-M5100-SGS (Shadow RD+, 11-speed, long cage)
Shifter	Shimano Deore SL-M5100-R (Rapidfire Plus, 11-speed, with or without gear display)
Cassette Options	CS-M5100 11-51T (wide range) or 11-42T (narrow range)
Chain	11-speed HG-X11 directional chain (e.g., CN-LG500)
Brand	Shimano (Japan)
Condition	New

Crankset and bottom bracket are NOT included — this listing covers shifter, derailleur, cassette, and chain. Verify variant options before ordering.

Frequently Asked Questions

Will this groupset fit my bike's freehub body?

The M5100 cassette fits a standard Shimano Hyperglide (HG) freehub body — the most common splined freehub on the market. If your rear hub currently has an 8, 9, or 10-speed Shimano cassette, it will fit. However, if you have a Shimano Micro Spline freehub (used on 12-speed), this cassette will NOT fit without an adapter or hub swap. Check your freehub type before ordering.

What chainring size works best with the 11-51T cassette?

A 30T or 32T chainring pairs well with the 11-51T cassette for trail and enduro riding. With a 32T ring, the 51T low gear gives you a gear ratio of 0.63 — low enough for sustained climbs. The 11T high gear with a 32T ring gives a ratio around 2.9:1, which translates to about 35 km/h (22 mph) at 90 rpm cadence on 29-inch wheels. For flatter XC terrain, a 34T ring is also workable but you will feel the climbs more.

Can I use the M5100 derailleur with a Shimano 12-speed shifter?

No. Shimano 11-speed and 12-speed MTB components use different cable pull ratios and are NOT cross-compatible. The M5100 derailleur is designed for 11-speed shifters only. If you need 12-speed, look at the Deore M6100 series instead.

How do I set the clutch tension on the RD-M5100?

The Shadow RD+ clutch is either ON or OFF — there is no tension adjustment screw on the M5100 (unlike higher-tier SLX and XT derailleurs). The clutch switch is located on the derailleur body near the mounting bolt. Flip it to the ON position for riding; flip to OFF for wheel removal. If the clutch feels too loose or too stiff after extended use, the internal friction band may need servicing or replacement.

Ready to upgrade your drivetrain?

Send your part list to Moritta@KOEED.COM and get availability and pricing within 24 hours.

Request a Quote →

Looking for Shimano brake sets, hubs, or other MTB components?

Browse All Products →

> Need help with parts compatibility or cross-referencing?

Contact our team or use the KOEED AI Diagnostic Tool for quick component checks.

Open AI Diagnostic Tool

koeed.com — Your Trusted PLC Supplier. Industrial electronics, automation components, and specialty parts. Worldwide shipping with 24-hour quote turnaround at Moritta@KOEED.COM.

At Koeed.com, we are professional architects of the industrial electronics supply chain. We specialize in providing high-performance PLCs, HMIs, Servo Motors, Drives, and Converters to ensure that modern manufacturing operations remain efficient, reliable, and future-proof in 2026’s competitive landscape.

🛡️ Certified Quality

We source only 100% authentic industrial hardware from global category leaders. Every component undergoes a rigorous verification process to meet Industry 4.0 reliability standards.

⚙️ Engineering Domain

Our experts provide more than just parts; we offer technical insight. We assist in complex product selection and compatibility audits for both legacy system upgrades and new installations.

🌐 Rapid Global Logistics

Time is money in industrial automation. Our optimized supply network ensures that critical components reach your facility quickly, significantly reducing unplanned downtime and operational loss.

Strategic Global Portfolio: Siemens, Omron, FANUC, Schneider Electric, Mitsubishi, Yaskawa, Allen-Bradley, and other elite industrial brands.

Supporting your vision for a smarter, more efficient industrial future.

Special Reminder

Important

If you have any questions about product information and prices, please feel free to contact us by email or WhatsApp. We will respond quickly.

Business Days Only (Monday through Saturday)
It takes up to 10 days from the time of ordering (excluding Saturdays and Sundays) to the time of delivery to your designated location. Worldwide delivery.
Within 3 days after placing the order, we will send you photos and videos of the product via email or WhatsApp for confirmation

International shipping - items may be subject to customs processing depending on the item's customs value.
Sellers declare the item's customs value and must comply with customs declaration laws.
As the buyer, you should be aware of possible:

Delays from customs inspection.
Import duties and taxes which buyers must pay.
Brokerage fees payable at the point of delivery.

Shipping Policy

Global Delivery

We ship to customers all over the world. Our primary logistics providers are DHL, UPS, TNT, FedEx, and EMS.

Processing Time

All orders are processed within 72 hours of purchase. Please note that this applies to business days only.

Shipping Rates & Delivery Estimates

Shipping charges for your order will be calculated and displayed at checkout. Delivery estimates are within 7-14 days. Please note that these shipping times are only estimates and unfortunately, cannot be guaranteed.

Shipment Confirmation & Order Tracking

You will receive a Shipment Confirmation email once your order has shipped containing your tracking number(s). The tracking number will be active within 24 hours.

Customs, Duties, and Taxes

Please note, international shipping services do vary from country to country. To find out the exact services that are available, please put in your full address at checkout. Shipping internationally does mean that you may be required to pay customs and import taxes. All international customers are responsible for the customs rates within their own country. For further information, we recommend contacting your local customs office.

Damages

We take every reasonable precaution to ensure that products are not damaged. If the item is damaged in transit, please immediately contact us. We are not liable for any products damaged or lost during shipping. If you received your order damaged, please contact the shipment carrier to file a claim. Please save all packaging materials and damaged goods before filing a claim.

Force Majeure

When encountering with force majeure, the processing of orders will be delayed. Nevertheless, it is ensured that your order will be processed in a fast manner when weather permits.

Address Verification

Please verify you have the correct shipping address on your order PRIOR to making payment as this is the address we will ship to.

Return Policy

For more information, visit our Return Policy page.

International shipping - items may be subject to customs processing depending on the item's customs value.

Sellers declare the item's customs value and must comply with customs declaration laws.
As the buyer, you should be aware of possible:
• Delays from customs inspection.
• Import duties and taxes which buyers must pay.
• Brokerage fees payable at the point of delivery.

Contact Us

If you have any questions about your order, please contact us at moritta@koeed.com.

Return Policy

Return and Refund Policy

We want you to be completely satisfied with your purchase on our store. If for any reason you are not entirely satisfied, we're here to help!

Returns

You have a generous 30 calendar days to return an item from the date you received it. To be eligible for a return, ensure the item is in its original, unworn, and unused condition with tags and packaging intact. Retain your receipt or proof of purchase for eligibility. Please note that certain items are non-returnable like perishables, custom products, personal care goods, hazardous materials, flammable liquids, and gases. Reach out for clarifications on specific items.

Return Process

Commence the return process by reaching out to us at moritta@koeed.com. Upon approval, we will furnish you with a return shipping label and detailed instructions for dispatching your package. Unnotified returns will not be accepted.

Damages and Issues

Kindly review your order upon delivery. Notify us promptly if it arrives defective, damaged, or incorrect. We will address the matter swiftly.

Exchanges

Facilitate a swift exchange by returning the original item once approved and making a new purchase.

EU 14-Day Cooling Off Period

EU-bound shipments allow a 14-day cancellation or return period without justification. Conditions mirror standard returns.

Refunds

Upon receiving and inspecting your return, we’ll inform you of the refund status. Approved refunds are automatically processed within 10 business days via the initial payment method. Allow time for financial institutions to finalize the refund. For delays exceeding 15 business days post-approval, contact us at moritta@koeed.com.

Shipping

You will be responsible for paying for your own shipping costs for returning your item. Shipping costs are non-refundable. If you receive a refund, the cost of return shipping will be deducted from your refund.

Contact Us

If you have any questions on how to return your item to us, feel free to contact us at moritta@koeed.com.

Artikel wurde in den Warenkorb gelegt

Shimano Deore M5100 11 Speed Groupset Shifter Cassette Chain Rear Derailleur MTB