RD-M9100 XTR 12-Speed Rear Derailleur, GS Medium Cage, For 10-45T/Single Ring

RR MECH XTR M9100 Shad+ 12s 10-

in Customer Rewards when you buy this item today
Earn Rewards
When you buy the RR MECH XTR M9100 Shad+ 12s 10-, you will earn of rewards points to spend on your next purchase from us, anything online and instore.

Hassle free returns on all products 

We are confident that you will be happy with the products you purchase from us but if you do change your mind we offer a 14 day money back guarantee on all online purchases except in the one circumstance listed below*. This period begins the day your order is delivered and ends 14 days from the day you receive your order and applies only to the conditions below.
If you wish to cancel an order before it has been dispatched you should phone or e-mail us as soon as possible. We can be contacted on 01706 860188 or via e-mail to info@cycleaddicts.co.uk
If you wish to return an item that has already been received, please call or e-mail where a member of our staff will be happy to advise you and guide you through any item of the returns process.
The goods must be returned within 14 days from the day they are received/signed for.
Goods that are unsuitable, ordered by mistake or size errors must be returned at your cost in their original condition along with all packaging intact & paperwork intact and in a re-sellable condition, in these cases postage costs will not be refunded. If a replacement size is needed by yourself there will be an additional £3.95 delivery charge. If returning goods within the 14 day policy, you are under a duty to keep them in your possession and to take reasonable care of them until they are returned.
You should retain proof of postage until we inform you that the returned items have been received safely by us. We will not take responsibility for lost mail unless a signature has been attained for the item at Cycle Addicts upon delivery.
If your goods are damaged in transit, we need to be notified of the damages within 24 hours of delivery to set up a claim with our courier company.
Items that are damaged or delivered in error are subject to the same basic conditions & expectations, however, should any claim for the above be valid, we will promptly refund any postage costs.
Please ensure you send a legible cover note including your receipt & contact details with all returns. This will provide clarity on the reason for return of the item & speed up the returns process.
*Unfortunately, exchanges or refunds are not allowed if the Goods have been specially made to order, personalized or altered to fit. These items do however come with their applicable warranty periods.

RR MECH XTR M9100 Shad+ 12s 10-

Season :

Brand : Shimano


Weight : 0KG

  • Xtr shadow plus 12-speed rear derailleur for the ultimate in shifting performance and durability
  • shadow plus features a super low profile design and optimized slant angle for super light shifting action
  • shadow plus uses a chain stabilising switch that when on will reduce chain bounce in rough terrain maintaining more stable drive and shifting
  • single tension spring prevents contact with the chainstay resulting in a silent ride
  • rubber bumper on pulley cage for added silent drive
  • 13t pulleys and decreased derailleur tension prevent high chain tension in low gears
  • direct cable routing prevents snagging from any trail side hazards
  • full carbon fibre outer pulley cage saves weight while alloy inner cage increases rigidity
  • cold forged wide alloy links and pivot body
  • four fluorine-coated link pin bushings
  • strong return spring for a positive shifting feel
  • specifically designed to work with XTR m9100 12-speed 1x drivetrains
  • durable sealed 13t bearing pulleys for low friction
  • top normal spring uses the spring to select higher gears
  • >max low sprocket: 45t (1x 12-speed)
  • 35t capacity sgs cage
  • average weight 237g
Technical Information
Sizing Information
Professional Opinion
Product Reviews
Write a review
0 As rated by 0 Customers

Write a review

Your name
Your email address
How would you rate it?
Would You Recomend this product?
Let others know your opinion
Submit Review Close
Question(s) answered about this product
Ask a question
Questions asked regarding this product

Ask a question

Your name
Your email address
Your Phone Number
Your question
Submit Question  Close
Have you found the Cheaper?
Ask us to Price Match it now

With Pre-Order, you can purchase the latest items added to our store in advance of them arriving with us.

You Pre-Order is prioritised (at no additional charge); meaning that, as soon as the product arrives with us, we can wrap it straight back up and get it sent out to you - it often never even hits the stock room shelves!


With Pre-Launch, the date when we expect to receive the product ourselves is still a little too hazy to be confident in accepting Pre-Orders.

So, instead, you can submit your email address against the item you are interested in and we will email you as soon as stock arrives on the system.

Estimated Delivery Dates

Estimated Delivery Dates are given on Pre-Order and Pre-Launch products. They are for indication purposes only and can change at any time without notice.

The dates we provide are based on indications given by our suppliers. Whenever we get updated information from our suppliers we will endeavour to update the Estimated Delivery Dates provided on product pages.