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12 Speed Bicycle Parts - Compare offers for Outdoor Recreation near you, and across Ireland

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Bicycle Drivetrain Parts (356)
Bicycle Wheel Parts (34)
Bicycle Small Parts (5)
Bicycle Wheels (1)
Bicycle Groupsets (1)
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CS-M7100 SLX 12-speed cassette

CS-M7100 SLX 12-speed cassette image

CS-M7100 SLX 12-speed cassette

114.99
My Cycle - Hollingsworth Bikes
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Shimano Tourney TY200 rear derailleur, 6/7-speed, with bracket, SS short cage image

Shimano Tourney TY200 rear derailleur, 6/7-speed, with bracket, SS short cage

€30.99
Gary's Cycles
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Shimano CS-M6100 deore 12 speed cassette image

Shimano CS-M6100 deore 12 speed cassette

€112.00
Base 2 Race
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BROMPTON BIKE P LINE EXPLORE - 12 SPEED image

BROMPTON BIKE P LINE EXPLORE - 12 SPEED

€3,074.00
Cycle Ways
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PRO 2 - Shimano Aluminium 8/9/10 Speed Freehub Body image

PRO 2 - Shimano Aluminium 8/9/10 Speed Freehub Body

€98.00
The Bike Rack
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Sram REAR DERAILLEUR SX EAGLE 12 SPEED A1: BLACK 12 SPEED image

Sram REAR DERAILLEUR SX EAGLE 12 SPEED A1: BLACK 12 SPEED

€102.49
Wheelworx
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Shimano Nexus SL-C6000 8-Speed Revo Shifter for Internally Geared Hub image

Shimano Nexus SL-C6000 8-Speed Revo Shifter for Internally Geared Hub

€16.99
Wheelworx
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Shimano CS-R8100 Ultegra 12 speed cassette image

Shimano CS-R8100 Ultegra 12 speed cassette

€138.00
Base 2 Race
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Shimano FC-RX600 GRX chainset 46 / 30, double, 10-speed, 2 piece design, 172.5 mm image

Shimano FC-RX600 GRX chainset 46 / 30, double, 10-speed, 2 piece design, 172.5 mm

€149.99
Wheelworx
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FC-R7100 105 double 12-speed chainset, HollowTech image

FC-R7100 105 double 12-speed chainset, HollowTech

159.99
My Cycle - Hollingsworth Bikes
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FC-R7100 105 double 12-speed chainset, HollowTech image

FC-R7100 105 double 12-speed chainset, HollowTech

159.99
My Cycle - Hollingsworth Bikes
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FC-R7100 105 double 12-speed chainset, HollowTech image

FC-R7100 105 double 12-speed chainset, HollowTech

159.99
My Cycle - Hollingsworth Bikes
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Sram Red 12 Speed Chain D1 image

Sram Red 12 Speed Chain D1

€80.00
The Bike Rack
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9NINE 9NINE 12 SPEED CASSETTE image

9NINE 9NINE 12 SPEED CASSETTE

€99.00
LK Bikes & Toys Limited
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Sram XG-1270 E1 12 Speed Cassette image

Sram XG-1270 E1 12 Speed Cassette

€215.00
The Bike Rack
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Shimano CN-M7100 SLX / 105 12 speed chain image

Shimano CN-M7100 SLX / 105 12 speed chain

€41.00
Base 2 Race
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FC-MT510 chainset, 12-speed, 52 mm chainline image

FC-MT510 chainset, 12-speed, 52 mm chainline

74.99
My Cycle - Hollingsworth Bikes
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CS-M7100 SLX 12-speed cassette 10 - 51T image

CS-M7100 SLX 12-speed cassette 10 - 51T

114.99
My Cycle - Hollingsworth Bikes
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FC-R7100 105 double 12-speed chainset, HollowTech image

FC-R7100 105 double 12-speed chainset, HollowTech

159.99
My Cycle - Hollingsworth Bikes
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RD-R7100 105 12-speed rear derailleur, black image

RD-R7100 105 12-speed rear derailleur, black

59.99
My Cycle - Hollingsworth Bikes
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FC-R7100 105 double 12-speed chainset, HollowTech image

FC-R7100 105 double 12-speed chainset, HollowTech

159.99
My Cycle - Hollingsworth Bikes
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Bar Part Trek Speed Concept Mono-Spacer 35 mm Black image

Bar Part Trek Speed Concept Mono-Spacer 35 mm Black

35.00
My Cycle - Hollingsworth Bikes
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SRAM NX Eagle 12 speed Chain 126 Links image

SRAM NX Eagle 12 speed Chain 126 Links

€26.22
Halfords
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SRAM NX Eagle 12 speed Chain 126 Links image

SRAM NX Eagle 12 speed Chain 126 Links

€26.22
Halfords
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Shimano CN-M8100 XT/Ultegra 12 Speed Chain image

Shimano CN-M8100 XT/Ultegra 12 Speed Chain

€57.99
Base 2 Race
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FC-R7100 105 double 12-speed chainset, HollowTech image

FC-R7100 105 double 12-speed chainset, HollowTech

159.99
My Cycle - Hollingsworth Bikes
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BROMPTON BIKE ELECTRIC BIKE C LINE EXPLORE - 12 SPEED image

BROMPTON BIKE ELECTRIC BIKE C LINE EXPLORE - 12 SPEED

€3,750.00
Cycle Ways
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Sram Rear Derailleur X01 Eagle 12 speed Max 52T 12 SPEED image

Sram Rear Derailleur X01 Eagle 12 speed Max 52T 12 SPEED

€277.00
Gary's Cycles
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CS-M7100 SLX 12-speed cassette 10 - 45T image

CS-M7100 SLX 12-speed cassette 10 - 45T

114.99
My Cycle - Hollingsworth Bikes
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CS-M6100 Deore 12-speed cassette, 10-51T image

CS-M6100 Deore 12-speed cassette, 10-51T

99.99
My Cycle - Hollingsworth Bikes
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RD-RX825 GRX Di2, 12-speed rear derailleur, Shadow image

RD-RX825 GRX Di2, 12-speed rear derailleur, Shadow

324.99
My Cycle - Hollingsworth Bikes
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FC-M6100-1 Deore 12 speed single chainring, 32T image

FC-M6100-1 Deore 12 speed single chainring, 32T

64.99
My Cycle - Hollingsworth Bikes
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RD-RX827 GRX Di2, 12-speed rear derailleur, Shadow image

RD-RX827 GRX Di2, 12-speed rear derailleur, Shadow

429.99
My Cycle - Hollingsworth Bikes
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FC-MT510 chainset, 12-speed, 52 mm chainline, 32T, image

FC-MT510 chainset, 12-speed, 52 mm chainline, 32T,

74.99
My Cycle - Hollingsworth Bikes
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FC-R8100 Ultegra 12-speed double chainset, 46 / 36 image

FC-R8100 Ultegra 12-speed double chainset, 46 / 36

299.99
My Cycle - Hollingsworth Bikes
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FC-R8100 Ultegra 12-speed double chainset, 50 / 34 image

FC-R8100 Ultegra 12-speed double chainset, 50 / 34

299.99
My Cycle - Hollingsworth Bikes
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FC-R8100 Ultegra 12-speed double chainset, 52 / 36 image

FC-R8100 Ultegra 12-speed double chainset, 52 / 36

299.99
My Cycle - Hollingsworth Bikes
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FC-R8100 Ultegra 12-speed double chainset, 46 / 36 image

FC-R8100 Ultegra 12-speed double chainset, 46 / 36

299.99
My Cycle - Hollingsworth Bikes
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FC-MT610 chainset, 12-speed, 51.8 mm Boost chainli image

FC-MT610 chainset, 12-speed, 51.8 mm Boost chainli

124.99
My Cycle - Hollingsworth Bikes
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FC-R8100 Ultegra 12 speed outer chainring, 52T-NH image

FC-R8100 Ultegra 12 speed outer chainring, 52T-NH

139.99
My Cycle - Hollingsworth Bikes
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FC-R8100 Ultegra 12-speed double chainset, 52 / 36 image

FC-R8100 Ultegra 12-speed double chainset, 52 / 36

299.99
My Cycle - Hollingsworth Bikes
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FC-MT610 chainset, 12-speed, 51.8 mm Boost chainli image

FC-MT610 chainset, 12-speed, 51.8 mm Boost chainli

124.99
My Cycle - Hollingsworth Bikes
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FC-MT610 chainset, 12-speed, 48.8 mm chainline, 36 image

FC-MT610 chainset, 12-speed, 48.8 mm chainline, 36

124.99
My Cycle - Hollingsworth Bikes
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RD-M8100 XT 12-speed rear derailleur, Shadow+ SGS image

RD-M8100 XT 12-speed rear derailleur, Shadow+ SGS

109.99
My Cycle - Hollingsworth Bikes
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Other Offers Available

Electra Vale Go! Rigid Fork image

Electra Vale Go! Rigid Fork

€240.00
Little Sport (Fairview)
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Trek Checkpoint AL 700c Rigid Fork image

Trek Checkpoint AL 700c Rigid Fork

€420.00
Little Sport (Fairview)
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Chain tensioner extreme clean image

Chain tensioner extreme clean

POA Ex VAT
Broderick Grass Machinery
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Hope Pro 2 XX1/XD Conversion Kit image

Hope Pro 2 XX1/XD Conversion Kit

€144.50
The Bike Rack
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Alloy Front Hub(sb/grp4) image

Alloy Front Hub(sb/grp4)

€116.94
GRP4 Fabrications
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Alloy Front Hub(sb/grp4) image

Alloy Front Hub(sb/grp4)

€116.94
GRP4 Fabrications
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WAG PRESTA VALVE CORE image

WAG PRESTA VALVE CORE

€3.00
Cycle Ways
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Shimano BL-M9120 lever member unit image

Shimano BL-M9120 lever member unit

€45.99
Gary's Cycles
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Shimano SHIMANO FREEHUB BODY WHRS21CLR image

Shimano SHIMANO FREEHUB BODY WHRS21CLR

€35.00
LK Bikes & Toys Limited
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Shimano GRX RX820 Crankset Single Chainring image

Shimano GRX RX820 Crankset Single Chainring

€252.99
The Bike Rack
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FC-RX600 GRX chainset 46/30T, double, 11-speed, 2- image

FC-RX600 GRX chainset 46/30T, double, 11-speed, 2-

134.99
My Cycle - Hollingsworth Bikes
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BBB BBB BCR-11S ROADGEAR CHAINRING 9/10 SPEED 52T image

BBB BBB BCR-11S ROADGEAR CHAINRING 9/10 SPEED 52T

€43.00
LK Bikes & Toys Limited
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Trek ABP Convert Derailleur Hanger image

Trek ABP Convert Derailleur Hanger

€15.00
Gary's Cycles
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Brake System | Pads Kukirin image

Brake System | Pads Kukirin

€20.00
Easy Motion
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SRAM Chain Apex D1 Flattop w/PowerLock 12s image

SRAM Chain Apex D1 Flattop w/PowerLock 12s

€50.00
Dublin2Bike
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Fenix disc 105 di2 12 speed image

Fenix disc 105 di2 12 speed

€3,150.00 Ex VAT
Victoria Cross Cycles & Repairs
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Madone SL 6 XL Crimson image

Madone SL 6 XL Crimson

4,799.00
My Cycle - Hollingsworth Bikes
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FC-R8100 Ultegra 12-speed double chainset, 46 / 36 image

FC-R8100 Ultegra 12-speed double chainset, 46 / 36

299.99
My Cycle - Hollingsworth Bikes
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Merida Scultura 4000 — The Bike Doc image

Merida Scultura 4000 — The Bike Doc

€2,450.00
The Bike Doc
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CS-6700 Ultegra 10-speed cassette 12 - 30T image

CS-6700 Ultegra 10-speed cassette 12 - 30T

74.99
My Cycle - Hollingsworth Bikes
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CS-R7000 105 11-speed cassette, 12 - 25T image

CS-R7000 105 11-speed cassette, 12 - 25T

54.99
My Cycle - Hollingsworth Bikes
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CS-HG400 Alivio 9-speed cassette 12 - 36T image

CS-HG400 Alivio 9-speed cassette 12 - 36T

31.99
My Cycle - Hollingsworth Bikes
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Shimano Deore XT SM-CRM86 Single chainring for XT M8200 image

Shimano Deore XT SM-CRM86 Single chainring for XT M8200

€74.99
The Bike Rack
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Shimano SLX SLM7100 band on Shifter 12spd RH image

Shimano SLX SLM7100 band on Shifter 12spd RH

€49.55
The Bike Rack
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GT Zaskar LT Expert image

GT Zaskar LT Expert

€1,800.00
Hollingsworth Cycles Templeogue
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116 Bicycle Chain For Speed 6/7/8 image

116 Bicycle Chain For Speed 6/7/8

€1.75
Eurotree Wholesale Ltd
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Shimano CSR8101 Ultegra 12speed Cassette 11 30T image

Shimano CSR8101 Ultegra 12speed Cassette 11 30T

€137.50
Clarkes Of Cavan
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FC-RS520 double 12-speed chainset, black image

FC-RS520 double 12-speed chainset, black

124.99
My Cycle - Hollingsworth Bikes
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BBB BHT-12 Speed Ribbon Bar Tape image

BBB BHT-12 Speed Ribbon Bar Tape

€19.99
Cycle Tribe
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Sram Chain Red E1 Flattop WPowerlock 12 Speed 126 LINKS image

Sram Chain Red E1 Flattop WPowerlock 12 Speed 126 LINKS

€110.00
Wheelworx
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Shimano FC-MT510-1 12 speed single 1X chainring, 32T image

Shimano FC-MT510-1 12 speed single 1X chainring, 32T

€32.99
Gary's Cycles
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Shimano FC-MT510-1 12 speed single 1X chainring, 30T image

Shimano FC-MT510-1 12 speed single 1X chainring, 30T

€32.99
Gary's Cycles
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SRAM Rival AXS DUB Wide 12 Speed Chainset 43/30T image

SRAM Rival AXS DUB Wide 12 Speed Chainset 43/30T

POA
Halfords
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SRAM Rival AXS DUB Wide Power Meter 12 Speed Chainset image

SRAM Rival AXS DUB Wide Power Meter 12 Speed Chainset

POA
Halfords
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Shimano FC-M6100-1 Deore 12 speed single chainring, 32T image

Shimano FC-M6100-1 Deore 12 speed single chainring, 32T

€71.99
Gary's Cycles
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Sram Chain Red E1 Flattop WPowerlock 12 Speed 114 LINKS image

Sram Chain Red E1 Flattop WPowerlock 12 Speed 114 LINKS

€100.00
Wheelworx
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MICHE MICHE XM CASSETTE 12SPD image

MICHE MICHE XM CASSETTE 12SPD

€122.00
LK Bikes & Toys Limited
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Noah Disc 105 di2 12 speed image

Noah Disc 105 di2 12 speed

€4,250.00 Ex VAT
Victoria Cross Cycles & Repairs
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2026 TREK MARLIN 7 GEN 3 image

2026 TREK MARLIN 7 GEN 3

€1,099.00
Raw Cycles Limited
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Marlin 7 XL 29 Keswick image

Marlin 7 XL 29 Keswick

999.00
My Cycle - Hollingsworth Bikes
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FC-R7000 105 11 speed inner chainring, 39T-MW, bla image

FC-R7000 105 11 speed inner chainring, 39T-MW, bla

21.99
My Cycle - Hollingsworth Bikes
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Shimano SL-RS700 flat bar shift levers image

Shimano SL-RS700 flat bar shift levers

€149.99
Wheelworx
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Trek Madone Gen3 Rear Derailleur Hanger image

Trek Madone Gen3 Rear Derailleur Hanger

€25.00
Wheelworx
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Trek Madone SL Painted Headset Cover image

Trek Madone SL Painted Headset Cover

€70.00
Wheelworx
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FSA Bosch Gen 3 Crank Arms image

FSA Bosch Gen 3 Crank Arms

€50.00
Wheelworx
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Bontrager 2023 Ratchet EXP SRAM XD Freehub image

Bontrager 2023 Ratchet EXP SRAM XD Freehub

€139.99
Wheelworx
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Bontrager Rapid Drive 108 Free Hub Pawls image

Bontrager Rapid Drive 108 Free Hub Pawls

€25.00
Wheelworx
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Shimano CS-M7100 lock ring & spacer image

Shimano CS-M7100 lock ring & spacer

€14.99
Gary's Cycles
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Bontrager Grand Strada Bladed J-Bend Spoke image

Bontrager Grand Strada Bladed J-Bend Spoke

€25.00
Gary's Cycles
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Trek FSA 1-1/8" Upper Headset Bearing image

Trek FSA 1-1/8" Upper Headset Bearing

€15.00
Gary's Cycles
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BSD Front Dogbone 98mm BS904-009 image

BSD Front Dogbone 98mm BS904-009

€6.85
Radio Controlled Shop
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Pedal System | Bottom Bracket image

Pedal System | Bottom Bracket

€38.00
Easy Motion
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Wheels Manufacturing Replaceable Derailleur Hanger / Dropout 510 image

Wheels Manufacturing Replaceable Derailleur Hanger / Dropout 510

€38.39
Gary's Cycles
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Trek Domane+ LT 2020 700 c Forks image

Trek Domane+ LT 2020 700 c Forks

€480.00
Gary's Cycles
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Shimano CS-M4100 lock ring for 11T image

Shimano CS-M4100 lock ring for 11T

€5.99
Gary's Cycles
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Sram /Truvativ GXP BB89.5/BB92 Bottom Bracket image

Sram /Truvativ GXP BB89.5/BB92 Bottom Bracket

€50.00
Gary's Cycles
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Bontrager Bolt-On Seatpost Clamp w/Cable Stop image

Bontrager Bolt-On Seatpost Clamp w/Cable Stop

€13.00
Gary's Cycles
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Pro LR2 Disc Brake Rotor - Centerlock image

Pro LR2 Disc Brake Rotor - Centerlock

71.99
My Cycle - Hollingsworth Bikes
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FH-M678 complete hub axle image

FH-M678 complete hub axle

46.99
My Cycle - Hollingsworth Bikes
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Chainring Prowheel TQ 46t w/Spider Black image

Chainring Prowheel TQ 46t w/Spider Black

55.00
My Cycle - Hollingsworth Bikes
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