Clocks Go Back 25 October – Light Up Your Ride With Autumn Essentials

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12 Speed Cassettes

Precision-matched 12 speed cassettes from Sram, SunRace and Shimano SLX, made for smooth, reliable shifting on 12 speed drivetrains. Keep your groupset running at its best or plan your next upgrade with parts you can trust.

Free UK delivery on orders over £50, with BIKEPARTS+ rewards on every purchase.

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48 products

Shimano SLX CS-M7100 12 Speed Cassette - 10 - 51T Sold out
0 sizes
Shimano SLX
Shimano SLX CS-M7100 12 Speed Cassette - 10 - 51T 5.0 · 8 reviews £93.67£124.99−25%
Shimano SLX CS-M7100 12 speed cassette Sold out
0 sizes
Shimano SLX
Shimano SLX CS-M7100 12 speed cassetteFrom £93.67£124.99−25%
Shimano SLX CS-M7100 12 Speed Cassette - 10 - 45T Sold out
0 sizes
Shimano SLX
Shimano SLX CS-M7100 12 Speed Cassette - 10 - 45T 5.0 · 2 reviews £114.99£124.99−8%
Sram Cassette Pg-1230 Eagle 11-50 12 Speed - Nx Eagle: Black 12Spd 11-50 BIKEPARTS+
Sram
Sram Cassette Pg-1230 Eagle 11-50 12 Speed - Nx Eagle: Black 12Spd 11-50£83.51£110.00−24%
Shimano Dura-Ace CS-R9200 12 Speed cassette BIKEPARTS+
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2 sizes
Shimano Dura-Ace
Shimano Dura-Ace CS-R9200 12 Speed cassetteFrom £188.92£329.99−43%
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Sram GX Eagle XG-1275 10-50 12 Speed Cassette - 10-50t - Black Sold out
Sram
Sram GX Eagle XG-1275 10-50 12 Speed Cassette - 10-50t - Black£170.39£217.00−21%
Sram Cassette Gx Eagle Xg-1275 Eagle 10-52 12 Speed: Black 10-52T Sold out
Sram
Sram Cassette Gx Eagle Xg-1275 Eagle 10-52 12 Speed: Black 10-52T 5.0 · 1 review £172.61£217.00−20%
SRAM Cassette XG-1270 E1 12 Speed: SILVER 10-36T BIKEPARTS+
Add to basket – select size
4 sizes
Sram
SRAM Cassette XG-1270 E1 12 Speed: SILVER 10-36T£190.00
Shimano XTR CS-M9100 Cassette, 12 speed Sold out
0 sizes
Shimano XTR
Shimano XTR CS-M9100 Cassette, 12 speedFrom £222.38£329.99−33%
SRAM Cassette XG-1270 E1 12 Speed: SILVER 10-33T BIKEPARTS+
Add to basket – select size
4 sizes
Sram
SRAM Cassette XG-1270 E1 12 Speed: SILVER 10-33T£171.00£190.00−10%
Sunrace MZ6 12 Speed MTB Cassette 11-51T
Sunrace
Sunrace MZ6 12 Speed MTB Cassette 11-51TFrom £76.63£95.00−19%
Sram Cassette Xs-1275 T-Type Eagle 12 Speed: 10-52T
Sram
Sram Cassette Xs-1275 T-Type Eagle 12 Speed: 10-52T£220.35£270.00−18%
Sram Cassette Pg-1231 Xplr 12 Speed 11-44: BIKEPARTS+
Sram
Sram Cassette Pg-1231 Xplr 12 Speed 11-44: 5.0 · 1 review £114.99£135.00−15%
SRAM Cassette XS-1270 T-Type Eagle 10-52 12 speed (Non-XD): BLACK 10-52T BIKEPARTS+
Sram
SRAM Cassette XS-1270 T-Type Eagle 10-52 12 speed (Non-XD): BLACK 10-52T£176.95£215.00−18%
SRAM Cassette XG-1270 E1 12 Speed: SILVER
Add to basket – select size
4 sizes
Sram
SRAM Cassette XG-1270 E1 12 Speed: SILVERFrom £166.77£190.00−12%
Sunrace RZ 12 Speed Road Cassette
SunRace
Sunrace RZ 12 Speed Road CassetteFrom £72.82£90.00−19%
Sunrace MZ8 12 Speed MTB Cassette 11-51T
Sunrace
Sunrace MZ8 12 Speed MTB Cassette 11-51T£88.01£110.00−20%
Sram Cassette Xs-1275 T-Type Eagle 12 Speed: Black 10-52T BIKEPARTS+
Sram
Sram Cassette Xs-1275 T-Type Eagle 12 Speed: Black 10-52T£220.35£270.00−18%
SunRace MZ800 12 Speed Cassette Silver 12spd
SunRace
SunRace MZ800 12 Speed Cassette Silver 12spd£88.01£104.99−16%
Sram Cassette Xs-1295 T-Type Eagle 12 Speed 2023: 10-52T
Sram
Sram Cassette Xs-1295 T-Type Eagle 12 Speed 2023: 10-52T£387.34£430.00−10%
Sram Cassette Xg-1290 E1 12 Speed: Silver 10-36T
Add to basket – select size
4 sizes
Sram
Sram Cassette Xg-1290 E1 12 Speed: Silver 10-36T£334.17£470.00−29%
SunRace MZ800 12 Speed Cassette Silver 12spd
SunRace
SunRace MZ800 12 Speed Cassette Silver 12spd£88.01£110.00−20%
Sunrace MZ9 12 Speed MTB Cassette
Sunrace
Sunrace MZ9 12 Speed MTB CassetteFrom £110.79£135.00−18%
Sunrace 12 Speed MTB Microspline Silver 10-51T
Sunrace
Sunrace 12 Speed MTB Microspline Silver 10-51TFrom £80.42£99.00−19%
Sram Cassette Xg-1299 Eagle 10-52 12 Speed: Rainbow 10-52T Sold out
Sram
Sram Cassette Xg-1299 Eagle 10-52 12 Speed: Rainbow 10-52T£419.99£453.00−7%
Sram Cassette Xg-1290 E1 12 Speed: Rainbow 10-36T
Add to basket – select size
4 sizes
Sram
Sram Cassette Xg-1290 E1 12 Speed: Rainbow 10-36T£383.50£470.00−18%
Sram Cassette Xg-1290 E1 12 Speed
Add to basket – select size
4 sizes
Sram
Sram Cassette Xg-1290 E1 12 SpeedFrom £316.60£470.00−33%
SunRace RZ800 Index 12 Speed Cassette Silver Sold out
SunRace
SunRace RZ800 Index 12 Speed Cassette Silver£84.99£99.99−15%
SunRace MZ903 12 Speed Cassette Silver 12spd
SunRace
SunRace MZ903 12 Speed Cassette Silver 12spd£122.99£144.99−15%
Sram Cassette Xx1 Eagle Xg-1299 10-50 12 Speed Gold: Gold 12Spd 10-50T Sold out
Sram
Sram Cassette Xx1 Eagle Xg-1299 10-50 12 Speed Gold: Gold 12Spd 10-50T£396.55£453.00−12%
Sram Cassette Xg-1295 Eagle 10-50T 12 Speed Black: 10-50T Sold out
Sram
Sram Cassette Xg-1295 Eagle 10-50T 12 Speed Black: 10-50T£340.23£387.00−12%
SRAM Cassette XG-1270 E1 12 Speed: SILVER 10-30T
Add to basket – select size
4 sizes
Sram
SRAM Cassette XG-1270 E1 12 Speed: SILVER 10-30T£190.00
SRAM Cassette XG-1270 E1 12 Speed: SILVER 10-28T
Add to basket – select size
4 sizes
Sram
SRAM Cassette XG-1270 E1 12 Speed: SILVER 10-28T£166.77£190.00−12%
Sram Cassette Xg-1290 E1 12 Speed: Rainbow 10-30T
Add to basket – select size
4 sizes
Sram
Sram Cassette Xg-1290 E1 12 Speed: Rainbow 10-30T£365.46£470.00−22%
Sram Cassette Xg-1290 E1 12 Speed: Silver 10-33T
Add to basket – select size
4 sizes
Sram
Sram Cassette Xg-1290 E1 12 Speed: Silver 10-33T£316.60£470.00−33%
Autumn Essentials: lights, mudguards and winter kit for darker, wetter ridesShop the collection
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