105 12-speed cassette
Shimano 105 CS-R7101-12 12-Speed Cassette 11-34T
A hard-wearing 12-speed 11-34T cassette for 105 Di2 and mechanical 105 bikes, also specified for GRX 2x. It gives a 1:1-ish climbing gear with a compact chainset while keeping single-tooth steps at the top.
Highlights
Why we rate it
One cassette, both 105 groups
The R7101 revision is specified for both 105 Di2 (R7150) and mechanical 105 (R7100) rear derailleurs.
Hyperglide+ shifting
Profiled teeth and ramps help the chain change gear smoothly even when you shift under pressure on a climb.
Alloy carrier for the big cogs
The largest sprockets ride on a lightweight aluminium carrier, which trims weight and stiffens the block.
Climbing-friendly range
11-34T pairs well with 50-34T or 52-36T chainsets for steep lanes and long alpine passes.
Easy wheel fitting
Mounts on Shimano 12-speed and conventional 11-speed road freehub bodies.
Tech specs
Specification
Manufacturer specification. Details may change without notice.
Specification
- Model code
- CS-R7101-12
- Speeds
- 12
- Range
- 11-34T
- Sprockets
- 11-12-13-14-15-17-19-21-24-27-30-34
- Weight
- 361g
- Materials
- Nickel-plated steel sprockets, aluminium carrier
- Freehub
- Shimano HG road 12-speed (HG L2) and road 11-speed
- Compatible derailleurs
- RD-R7100, RD-R7150, RD-R8150, RD-R9250, RD-RX820
- Chain
- Shimano 12-speed HG+ (CN-M7100 recommended)
- Replaces
- CS-R7100-12 (11-34T)
In the box
- Includes
- Cassette
- Includes
- Lockring
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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Hand washing with cold water (or gentle wash cycle)Using mild, high quality detergent
Drip drying in shade, do not machine dry
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Sorting your clothing by color
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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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