Shimano Deore XT RD-M8250-GS Di2 Wireless Rear Derailleur - Black/Gray [MPN: IRDM8250GSB]

  • Shimano Deore XT RD-M8250-GS Di2 Wireless Rear Derailleur - Black/Gray [MPN: IRDM8250GSB]_1926475
  • Shimano Deore XT RD-M8250-GS Di2 Wireless Rear Derailleur - Black/Gray [MPN: IRDM8250GSB]_1926476
  • Shimano Deore XT RD-M8250-GS Di2 Wireless Rear Derailleur - Black/Gray [MPN: IRDM8250GSB]_1926477
  • Shimano Deore XT RD-M8250-GS Di2 Wireless Rear Derailleur - Black/Gray [MPN: IRDM8250GSB]_1926478
  • Shimano Deore XT RD-M8250-GS Di2 Wireless Rear Derailleur - Black/Gray [MPN: IRDM8250GSB]_1926479
  • Shimano Deore XT RD-M8250-GS Di2 Wireless Rear Derailleur - Black/Gray [MPN: IRDM8250GSB]_1926480
Brand: Shimano MPN: IRDM8250GSB
Up to 1% off
$566.83
$566.83 $570.00
Est Arrival: June 6–10
Ships same day
In stock

Optimized for impact survivability, the 12-speed XT RD-M8250 medium cage rear derailleur is the top choice for everyday trail riding, offering unmatched durability, quick, precise shifts and added weight savings when paired with the 9-45t compact cassette (cassette sold separately). Featuring all-new wireless Di2 shifting, automatic impact recovery, a 500% gear range and 23 millimeters of additional ground clearance for a bash-free ride, the M8250 rear derailleur is built to be relentlessly reliable so you are free to focus solely on the trail ahead.

  • Di2 technology results in precise and clean wireless shifting
  • Pinpoint, ultra-fast shifting, and a no-sacrifice 500% gear range
  • Wide link structure, skid-plate design, durable aluminum plate and solid pulley add robustness and longevity
  • Automatic Impact Recovery function instantly returns the derailleur motor to its original position after impact
  • Shimano Shadow ES technology delivers a wedge-shaped design that reduces the derailleur’s front-facing surface area and eliminates edges that could catch on rocks and roots
  • Tucked safely inside an enclosed space, the battery won’t budge even in rough terrain, while remaining easily removable for charging
  • Solid pulley and shielded pulley teeth prevent trail debris from jamming up your flow
Cage LengthMedium
Chain Wrap Capacity (teeth)36
ColorBlack/Gray
Dimensions7 in x 7 in x 7 in
Drivetrain Speeds12
Largest Cog45
MPNIRDM8250GSB
MPN AltRD0182
Rear Der/Shifter CompatibilityShimano Mountain Di2
Rear Derailleur Mount Type10x1 Standard / Shimano Rear Direct Mount
Weight1 lb 0 oz
Shimano Deore XT RD-M8250-GS Di2 Wireless Rear Derailleur - Black/Gray [MPN: IRDM8250GSB]

$566.83

FAQ

How do I tell if a part will fit my ride?

Not sure if a part fits your ride? No problem—we’ve made it easy! You’ll find a fitment tool right on every product page (and on our homepage) to help you check compatibility with your vehicle. If you’re still unsure, just reach out—we’re always happy to help you find the right fit.

Does Motomentum price match?

In many cases, yes we do! We’re all about giving you the best deal, so if you find a lower price elsewhere, let us know. You can check out all the details in our Price Match Policy.

Do you offer warranties on your products?

At Motomentum, we stand behind the products we sell because we only carry brands we trust. Most of our items are covered by the manufacturer’s warranty, but don’t worry—we’re always here to help. If you ever run into an issue, reach out to us first. We’ll gladly assist with warranty questions and help you navigate the process to make sure you’re taken care of.

What payment methods do you accept?

We accept Apple Pay, Discover, Google Pay, MasterCard, PayPal, Shop Pay, Venmo, & Visa. We also offer a "Buy Now, Pay Later" option with Shop Installments through Shop Pay.

What is your return policy?

Motomentum accepts returns within 45 days of delivery, as long as items are unused, unaltered, and in resellable condition with all original packaging, tags, accessories, and paperwork included (some exclusions apply). See our full Return Policy or start a return from your orders page.

How much is shipping?

If you’re in the continental U.S., odds are good you’re getting free shipping. And how fast is it? Most orders arrive in 2–3 days. Sometimes faster, especially if a warehouse near you is locked and loaded.

We ship most items free of charge, unless it’s the kind of thing that won’t fit in your trunk (unless you drive a box truck). Oversized stuff may cost a little extra—but we’ll always keep it real with you upfront.

Need it even quicker? At checkout, you’ll usually have 2 express options ready to go—because sometimes, you just can’t wait.

Bottom line: we want you to get your gear fast, at the best price, with no surprises. Check out our Shipping Policy to see all the details.

Can I pick my order up instead?

Absolutely! Just give us a quick shout before you order so we can double-check things for you. Since we ship from multiple locations across the country, your item might not be at our HQ—but don’t worry, that usually means it’ll reach you even faster!

How do I join the MotoMoney Loyalty Program?

It’s easy — and free! Just create a Motomentum account, and you’ll automatically be enrolled in the MotoMoney Loyalty Program. From there, you’ll start earning points on eligible purchases right away. No extra steps or sign-ups required. If you already have an account, view your Loyalty account and make sure your status is turned on (green).

How do I become a Motomentum Member?

It’s easy — and free! Head on over to our Membership page to sign up. We’ll email you all the details, plus your exclusive Motomentum Members-only coupon code.

Where can I find your discount codes and deals?

You can find all our current discount codes and deals in one handy spot right here. Check it out anytime to snag the latest savings!

To see more, visit our full list of FAQ.