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SRAM REAR DER GX 2X11SP LONG BLK 00.7518.082.000
15% Off Full Price

SRAM

SRAM REAR DER GX 2X11SP LONG BLK 00.7518.082.000

Regular price $247.00 Full price
Sale price $247.00
Club price
Regular price $290.99 Full price
SRAM Derailler-RR 10S X5 LG

SRAM

SRAM Derailler-RR 10S X5 LG

Regular price $109.00 Full price
Sale price $109.00
Club price
Regular price $117.99 Full price
Cube Rear Derailleur Hanger

Cube

Cube Rear Derailleur Hanger

Regular price $55.00 Full price
Sale price $55.00
Club price
Regular price $59.99 Full price
SRAM X3 8 Speed Rear Derailleur
15% Off Full Price

SRAM

SRAM X3 8 Speed Rear Derailleur

Regular price $45.00 Full price
Sale price $45.00
Club price
Regular price $52.99 Full price
SRAM Pulleyset 10S X0
15% Off Full Price

SRAM

SRAM Pulleyset 10S X0

Regular price $83.00 Full price
Sale price $83.00
Club price
Regular price $97.99 Full price
Shimano Altus Rear Derailleur 7/8 Speed M310 Black

Shimano

Shimano Altus Rear Derailleur 7/8 Speed M310 Black

Regular price $47.00 Full price
Sale price $47.00
Club price
Regular price $49.99 Full price
Shimano Deraill-RR Xt 12Sp M8100 10-51T

Shimano

Shimano Deraill-RR Xt 12Sp M8100 10-51T

Regular price $199.00 Full price
Sale price $199.00
Club price
Regular price $209.99 Full price
SRAM REAR DERAILLERS SX EAGLE 12SP

SRAM

SRAM REAR DERAILLERS SX EAGLE 12SP

Regular price $189.99 Full price
Sale price $189.99
Club price
Regular price $199.99 Full price
Shimano Rear Derailleur RD-M3100 Alivio Shadow 9-Speed

Shimano

Shimano Rear Derailleur RD-M3100 Alivio Shadow 9-Speed

Regular price $75.00 Full price
Sale price $75.00
Club price
Regular price $79.99 Full price
Shimano Deore RD-M6100 12-Sp for 51T Max Shadow+ Long Cage Rear Derailleur
21% Off Full Price

Shimano

Shimano Deore RD-M6100 12-Sp for 51T Max Shadow+ Long Cage Rear Derailleur

Regular price $103.00 Full price
Sale price $103.00
Club price
Regular price $129.90 Full price
SRAM REAR DER GX EAGLE 52T

SRAM

SRAM REAR DER GX EAGLE 52T

Regular price $285.00 Full price
Sale price $285.00
Club price
Regular price $294.99 Full price
Shimano RD-M3020 ACERA 7/8-SPEED BLACK 40T MAX

Shimano

Shimano RD-M3020 ACERA 7/8-SPEED BLACK 40T MAX

Regular price $47.00 Full price
Sale price $47.00
Club price
Regular price $49.99 Full price
Shimano RD-M8130 XT Shadow+ Rear Derailluer 11-Speed 50T Maximum

Shimano

Shimano RD-M8130 XT Shadow+ Rear Derailluer 11-Speed 50T Maximum

Regular price $204.00 Full price
Sale price $204.00
Club price
Regular price $209.99 Full price
Shimano Rear Derailleur 1x11 Deore M5100

Shimano

Shimano Rear Derailleur 1x11 Deore M5100

Regular price $125.00 Full price
Sale price $125.00
Club price
Regular price $129.98 Full price
SRAM GX X-Horizon 1x11 Speed Long Cage Rear Derailleur Black
15% Off Full Price

SRAM

SRAM GX X-Horizon 1x11 Speed Long Cage Rear Derailleur Black

Regular price $232.00 Full price
Sale price $232.00
Club price
Regular price $272.99 Full price
Shimano RD-U6000 Cues Rear Derailleur 10/11 Speed 50T Max

Shimano

Shimano RD-U6000 Cues Rear Derailleur 10/11 Speed 50T Max

Regular price $105.00 Full price
Sale price $105.00
Club price
Regular price $109.99 Full price
SRAM Derailler-RR 12S NX Eagle Black

SRAM

SRAM Derailler-RR 12S NX Eagle Black

Regular price $242.99 Full price
Sale price $242.99
Club price
Regular price $254.99 Full price
SRAM Derail-RR 9S X5 LG
15% Off Full Price

SRAM

SRAM Derail-RR 9S X5 LG

Regular price $96.00 Full price
Sale price $96.00
Club price
Regular price $112.99 Full price
SRAM Derailler-RR 11S NX

SRAM

SRAM Derailler-RR 11S NX

Regular price $189.00 Full price
Sale price $189.00
Club price
Regular price $192.99 Full price
Shimano RD-RX812 Rear Derailluer GRX 11-Speed for 42T

Shimano

Shimano RD-RX812 Rear Derailluer GRX 11-Speed for 42T

Regular price $204.00 Full price
Sale price $204.00
Club price
Regular price $209.99 Full price
Campagnolo Veloce 10 Speed Rear Derailleur Short Cage Black
15% Off Full Price

Campagnolo

Campagnolo Veloce 10 Speed Rear Derailleur Short Cage Black

Regular price $169.00 Full price
Sale price $169.00
Club price
Regular price $199.99 Full price
SRAM GX Eagle Rear Derailleur Pulleys and Inner Cage
15% Off Full Price

SRAM

SRAM GX Eagle Rear Derailleur Pulleys and Inner Cage

Regular price $83.00 Full price
Sale price $83.00
Club price
Regular price $97.99 Full price
Pilo Derailleur Hanger - D185 - For Trek MTB 6700 6500 - WMFG-144

99bikes.co.nz

Pilo Derailleur Hanger - D185 - For Trek MTB 6700 6500 - WMFG-144

Regular price $55.00 Full price
Sale price $55.00
Club price
Regular price $59.99 Full price
Shimano Derailler-RR 11S Xt-M8000 Shadow MD
20% Off Full Price

Shimano

Shimano Derailler-RR 11S Xt-M8000 Shadow MD

Regular price $159.00 Full price
Sale price $159.00
Club price
Regular price $199.99 Full price
Shimano RD-U6020-10 Cues Rear Derailleur 10 Speed 39T Max

Shimano

Shimano RD-U6020-10 Cues Rear Derailleur 10 Speed 39T Max

Regular price $82.00 Full price
Sale price $82.00
Club price
Regular price $84.99 Full price
Shimano SLX RD-M7100 12 Speed Long Rear Derrailleur Shadow+

Shimano

Shimano SLX RD-M7100 12 Speed Long Rear Derrailleur Shadow+

Regular price $154.99 Full price
Sale price $154.99
Club price
Regular price $159.98 Full price
Shimano RD-U2000 Essa 8 Speed Rear Derailleur 45T Max

Shimano

Shimano RD-U2000 Essa 8 Speed Rear Derailleur 45T Max

Regular price $77.00 Full price
Sale price $77.00
Club price
Regular price $79.95 Full price
Wheelsman #266 Derailleur Hanger (suits GT Avalanche)

Wheelsmith

Wheelsman #266 Derailleur Hanger (suits GT Avalanche)

Regular price $45.00 Full price
Sale price $45.00
Club price
Regular price $49.99 Full price
Shimano RD-T8000 Deore XT Long Cage 10-Speed Rear Derailleur
15% Off Full Price

Shimano

Shimano RD-T8000 Deore XT Long Cage 10-Speed Rear Derailleur

Regular price $144.00 Full price
Sale price $144.00
Club price
Regular price $169.99 Full price
Pilo Derailleur Hangar - D24

Pilo

Pilo Derailleur Hangar - D24

Regular price $54.00 Full price
Sale price $54.00
Club price
Regular price $59.99 Full price
SRAM Pulley Set for GX Eagle Rear Derailleur

SRAM

SRAM Pulley Set for GX Eagle Rear Derailleur

Regular price $68.00 Full price
Sale price $68.00
Club price
Regular price $69.99 Full price
SRAM Derail-RR 10S Gx MD
15% Off Full Price

SRAM

SRAM Derail-RR 10S Gx MD

Regular price $134.00 Full price
Sale price $134.00
Club price
Regular price $157.99 Full price
BBB 'ROLLERBOYS' PULLEY SET 11T BLACK SHIM 9/10/11 spd

BBB

BBB 'ROLLERBOYS' PULLEY SET 11T BLACK SHIM 9/10/11 spd

Regular price $27.00 Full price
Sale price $27.00
Club price
Regular price $29.99 Full price
Shimano RD-TY300 Tourney Rear Derailleur 6/7speed
16% Off Full Price

Shimano

Shimano RD-TY300 Tourney Rear Derailleur 6/7speed

Regular price $21.00 Full price
Sale price $21.00
Club price
Regular price $24.99 Full price
Shimano Rear Derailleur Deore M5120-SGS RD+ 2x11, 1x10, 2x10-speeds

Shimano

Shimano Rear Derailleur Deore M5120-SGS RD+ 2x11, 1x10, 2x10-speeds

Regular price $117.00 Full price
Sale price $117.00
Club price
Regular price $119.99 Full price
Shimano A070 Rear Derailleur 7 Speed Tourney Axle Mount
20% Off Full Price

Shimano

Shimano A070 Rear Derailleur 7 Speed Tourney Axle Mount

Regular price $28.00 Full price
Sale price $28.00
Club price
Regular price $34.99 Full price

Find Your Size

Step 1: Measure your height

  • Take off your shoes
  • Stand with your back straight against a wall
  • Balance a book on your head to mark your height on the wall
  • Measure your height by the distance from the floor to the mark
cm

Find Your Size

Step 2: Adjust your inseam

  • Based on your height, we’ve calculated a starting point.
  • You can measure your inseam by tucking a book between your legs so there is pressure but it isn’t uncomfortable.
  • Inseam typically falls with 5cm of the average.
cm

Find Your Size

Your results

For the we suggest the following size.

More comfort More speed
Height: --
Inseam: --
Adjusted Height: --

Find Your Size

We have saved your measurements.

Recommended sizes will now be highlighted on the page.

99 Bikes has a wide range of front and rear derailleurs to fit every bike. When it comes time to replace a damaged or worn out derailleur shop in-store or online for the best range and best prices in New Zealand. 99 Bikes has your road, mountain and commuter bike covered with a range of front derailleurs, rear derailleurs and pulley wheels to keep your bike running smoother for longer.