Shimano Deore Wireless Shift Groupset 1x12 Speed

Shimano Deore M6250 Di2 12-Speed Groupset

Experience the next generation of trail performance with the Shimano Deore M6250 Di2 12-Speed Groupset — a complete, wireless drivetrain built for riders who want precise shifting, powerful braking, and bulletproof reliability.

Bringing Di2 digital technology to the legendary Deore lineup, the M6250 combines wireless shifting, automatic derailleur alignment, and advanced drivetrain engineering into one trail-tough package. Every component is designed to work together for smooth, consistent power transfer and effortless control — whether you’re climbing steep trails or charging down technical descents.

This groupset blends modern innovation with Shimano’s proven dependability, giving you professional-level performance at an attainable price.

Key Features & Benefits

Wireless Shifting Precision

Enjoy lightning-fast, fully wireless 12-speed shifting with no cables or clutter. The system’s simple setup and automatic derailleur realignment mean less time tuning and more time riding.

Automatic Impact Recovery

The RD-M6250 derailleur automatically resets its position after impacts to maintain flawless gear indexing — so you can keep your focus on the trail, not your drivetrain.

Programmable Wireless Shifter

The SW-M6250-IR controller offers crisp, tactile feedback with programmable buttons. Through Shimano’s E-Tube app, you can customise shift speed and button functions for a tailored ride experience.

Wide-Range Drivetrain

A 10–51T 12-speed cassette delivers the ideal range for all conditions — giving you efficient climbing gears and smooth transitions to high-speed descents.

Deore Chainset with Dynamic Chain Engagement+

The MT520 crankset provides outstanding chain retention and efficient power transfer. The narrow-wide chainring profile keeps your chain secure on rough terrain while maintaining smooth pedalling efficiency.

Optimised Chain Design

The Deore 12-speed chain uses Shimano’s SIL-TEC surface treatment for reduced friction, quieter operation, and longer-lasting performance — even in muddy, dusty, or wet conditions.

Smooth, Durable Bottom Bracket

The BB-MT501 bottom bracket offers low-friction bearings and long-term reliability, keeping your pedalling smooth and consistent across thousands of kilometres.

Shadow ES Clutch Technology

Shimano’s Shadow ES clutch mechanism keeps the chain tensioned and stable, preventing drops and reducing chain slap for a quieter, more composed ride.

Powerful Hydraulic Disc Brakes

Deore M6200 brakes deliver confident stopping power with a smooth, consistent lever feel. The 2-piston calipers balance modulation and control, ensuring reliable braking in all conditions.

Long-Lasting Power

The BT-DN320 internal battery powers all Di2 components for hundreds of kilometres between charges, with easy USB-C top-ups using the EC-DN100 charger.

Why You’ll Love It

The Shimano Deore M6250 Di2 Groupset is where cutting-edge wireless performance meets everyday trail durability. It’s built to handle rugged terrain, unpredictable weather, and long days in the saddle — all while providing silky-smooth shifting and powerful braking at your fingertips.

No cables. No constant adjustments. Just reliable, responsive performance every time you ride.

Whether upgrading your current build or starting fresh, the M6250 is your gateway to a cleaner, faster, and smarter mountain biking experience.

Groupset Includes

• Di2 Rear Derailleur
• Wireless Shift Switch
• MT520 Crankset (1x12)
• Bottom Bracket
• 12-Speed Cassette (10–51T)
• 12-Speed Chain
• Hydraulic Disc Brakes (Front & Rear)
• DN320 Internal Battery
• USB-C Charger

DELIVERY

Delivery to mainland UK addresses are free for orders over £40. Except when you choose delivery to a third party (Click and Collect) there is a charge of £5.95 to cover some of the additional cost the couriers charge for this service. If you choose to collect from Fawkes warehouse there is no shipping charge.

There will an additional charge for deliveries to Highlands and Islands. 

RETURNS TO FAWKES

Whether it’s a jersey that doesn’t fit, or the colour is not quite right, sometimes you’ll need to return items to us.

If an item is 'as new' and has not been used or fitted in any way, you can return it to us by post within 90 days of delivery for a refund. Please ensure that the goods are returned in their original packaging and are in an unused condition.

Please click HERE to print and then complete the returns form and include it inside your parcel.

If you wish you can use our Royal Mail Returns service please follow the instructions on the link below to return your parcel to us.

Royal Mail Returns Service

Please pack the item carefully to avoid damaged during shipping.

Customers need to pay the cost of return delivery unless the item is faulty and this will be deducted from your refund, currently £3.95.

If your have a large item e.g. Child seat, Bike, trailer etc. please contact our customer service team at Guy@fawkes-cycles.co.uk to arrange the best way to return your item, the cost will be deducted from your refund.

You will not receive a refund for the retail value of any free or promotional items you are sent, and you will be charged if they are not returned.

UNWANTED ITEMS

If you change your mind on your purchase, you have a full 90 days to return it for a refund. All Goods must be unused, in a saleable condition and in their original packaging with all labels still attached.

Please pack the item carefully to avoid damaged during shipping.

There are some exclusions to our 90 day returns policy, which are detailed below:

Nutritional products or those with a best before date must be returned within 28 days*

Any customised items such as wheel builds cannot be returned*

GPS systems such as sports watches or cycle computers can only be returned if unregistered*

For hygiene reasons, any intimate garments such as facemasks, underwear and swimsuits can only be returned if the items are faulty.

*Unless faulty

If you wish to return your item for a refund, please follow the returns procedure above.

We try our best to process all refunds within 14 working days. We'll refund your item via your original payment method.

You will not receive a refund for the retail value of any free items you are sent, and Fawkes may charge you for this item if you fail to return it

FAULTY ITEMS

If you feel that your purchase has developed a fault, then please contact us with photographs of the issue before returning any goods - we may be able to solve your problem without you incurring any further inconvenience.

If you find a fault with your item, send it back to us and we'll take a look at it as soon as we can. Items sent back to us will undergo an inspection and it may be necessary to send the item away to the manufacturer to confirm the fault. If we confirm a manufacturing fault, we'll happily replace or refund it.

Please pack the item carefully to avoid damaged during shipping. 

Faulty items should be returned within a reasonable time and in a clean and dry condition. PLEASE NOTE, WE WILL NOT PROCESS DIRTY ITEMS.

Please enclose all your details and a covering note explaining the fault and any other useful details.

We'll try to get back to you within 14 working days of receipt of your parcel, although during busy periods this may take slightly longer.

Your statutory rights are not affected.

We reserve the right to recharge return carriage on items where no fault is identified.

Customer Service Email: Guy@Fawkes-Cycles.co.uk

Please contact us for our Payment & Security policy.