Ultegra Di2 rear mech
Shimano Ultegra RD-R8150 Di2 Rear Derailleur
Ultegra's 12-speed Di2 rear mech brings Dura-Ace shift speed and the same semi-wireless layout at a lower price and a little more weight. A single cage runs cassettes from 11-28T to 11-34T.
Highlights
Why we rate it
Wireless hub
The mech carries the wireless receiver, charging port and status LED, so the levers talk directly to it with no junction box.
Dura-Ace-level speed
Shares the quicker motor and linkage design of the Dura-Ace mech, so shift timing is on a par with the top tier.
One cage covers it all
The same mech suits close-ratio race cassettes and wide 11-34T climbing setups.
Built to shrug off knocks
A saver function protects the motor gearbox if the mech takes a hit.
Tech specs
Specification
Manufacturer specification. Details may change without notice.
Specification
- Model code
- RD-R8150
- Speeds
- 12
- Actuation
- Di2 (semi-wireless, battery-in-frame)
- Max low sprocket
- 34T
- Min low sprocket
- 28T
- Top sprocket
- 11T
- Total capacity
- 39T
- Cage
- Single length, Shadow RD
- Pulleys
- 11T with cartridge bearings
- Ports
- 1 x EW-SD300 E-Tube, 1 x charging port
- Weight
- Approx. 262g
- Compatible levers
- ST-R8170 (wireless)
Ordering
Available from The Cycle Collective
Available to order through The Cycle Collective in Dorking. For availability, setup or advice, call 0203 148 6764 or email hello@thecyclecollective.cc.
Product Information
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Close all zippers before washing
Wash at max 30°C
Hand washing with cold water (or gentle wash cycle)Using mild, high quality detergent
Drip drying in shade, do not machine dry
Avoiding ironing and bleachThe instructions on your garment’s label
Sorting your clothing by color
Avoiding fabric softener.
Our clothing isn’t meant to be dry cleaned and soaking clothing is not ideal
Storage
Unused sealed sachets should be stored inside the box in a well-ventilated, dry place and protected from moisture, heat and direct sunlight. Can be stored for up to 3 years.
Size
Each sachet contains 30g powder.2 x 30g sachets per carton box.
Makes 2x litres of bike cleaner
100% plastic free packaging
Readily biodegradable ingredients
100% water free
Refill your old bottle and help reduce plastic waste
92% saving in packaging compared to 2 x 1L bike cleaner
100% environmentally friendly ingredients, including plant based raw materials
Supplied in a compostable sachet and printed with vegetable inks
FSC recycled card box containing 2 x sachets – that makes 2L of bike cleaner
Safe on all parts and surfaces including carbon fibre
Will not harm seals, cables, disc brake pads or rotors
Alkaline based and free from alcohol, CFCs, EDTA, solvents or acids
Vegan & vegetarian friendlyCruelty free, not tested on animals
Sachet Instructions
1. Grab your empty old bottle of Muc-Off. (You may need a pair of adjustable pliers to remove the trigger from the bottle). Or purchase our Bottle for Life.
2. Fill up to the shoulders of the bottle with 1 litre of lukewarm water for faster formula activation!
3. Carefully cut one corner of the sachet open along the diagonal cut lines.
4. You can carefully pour the sachet straight into the top of the bottle. Or using the box, fold the inside of the lid together using the printed lines as a guide and use this as a funnel to pour the powder into your bottle. (Please see our video for full instructions on this.
5. Screw your spray trigger back onto the top of the bottle. Ensure it’s tight!
6. Shake the bottle vigorously for 30-60 seconds to activate the formula. If you notice any undissolved powder simply keep shakin’ it!
7. Go clean that filthy bike!
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