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RD-M6250 Di2 Wireless Deore 12-spd rear mech without battery, HYPERGLIDE, SGS
RD-M6250 Di2 Wireless Deore 12-spd rear mech without battery, HYPERGLIDE, SGS
Shimano Deore

Rear Mech RDM6250 Deore 12sp W/O BT SGS Black sgs - long

£374.99
Pre-Order

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

Your 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; ready for collection via Click & Collect or despatch to you — it often never even hits the stock room shelves!

Pre-Launch

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 & Collection Dates

Estimated Delivery & Collection 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 & Collection Dates provided on product pages.

We estimate this will be ready for despatch to you or collection via Click & Collect on Undetermined

Hassle free returns

Hassle-Free Returns

30-day returns on eligible online purchases.
Items returned under our extended policy must be unused and in their original condition.
Contact web@onyerbike.com with your order number for return instructions.

Change-of-mind return postage is payable by you.
A 10% restocking fee applies only to voluntary returns outside statutory cancellation rights.

Faulty, damaged or incorrect item?
Contact us and we’ll help put it right.

Most online purchases also include a 14-day cancellation rightfollowed by 14 days to return the goods. Your statutory rights are unaffected.

See our full Terms & Conditions for exclusions, special orders and finance or cycle-to-work returns.

Rear Mech RDM6250 Deore 12sp W/O BT SGS Black sgs - long

Season:2026

Brand:Shimano Deore

Code:RDM6250SGS

  • Deore m6250 shadow es 12-speed wireless rear derailleur for the ultimate in shifting performance and durability
  • precise and clean wireless shifting with integrated on-board removable battery (bt-dn320 sold separately)
  • the integrated removable on-board battery is protected within the linkage
  • crash recovery function, absorbs impacts and returns to its original position
  • connectivity ble, ant private
  • shadow es features a super low profile skid plate design and optimized slant angle for optimal clearance
  • shadow es uses a dual spring chain stabilising switch that when on will reduce chain bounce in rough terrain maintaining more stable drive and shifting
  • the shadow es system is also zero maintenance and has no degradation of performance
  • unique structure using two springs has a tighter chain wrap that improves shifting and security with increased spring force by 70%, allowing the chain to mesh firmly with the sprocket
  • with the tighter chain wrap skipping is prevented even as the cogs wear
  • 13t solid pulleys and decreased derailleur tension prevent high chain tension in low gears
  • dependable steel pulley cages
  • cold forged wide alloy links and pivot body
  • fluorine-coated link pin bushings
  • specifically designed to work with 12-speed drivetrains
  • 10-51 tooth compatible sgs cage
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