Rear Derailleur
Sunday, July 31st, 2011Rear Derailleur
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 Shimano Ultegra model 6500 rear derailleur  US $15.95
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 SRAM RED 10SPEED ROAD BIKE REAR DERAILLEUR SS CARBON US $199.00
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 Sram X0 carbon rear derailleur 9 speed xo x0 US $60.00
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 SHIMANO SIS RD TY15 Bike Rear Derailleur 5 Speed NEW US $3.97
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 Shimano Deore LX RD M 570 Rear Derailleur Long Cage Excellent Working Condition US $12.99
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 Shimano Deore LX 9 Speed Rear Derailleur Silver US $7.50
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 SHIMANO ALIVIO RD M410 Rear Derailleur 7 8 SPEED NEW US $24.97
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 New Sunrace M30 Mountain Bike hybrid Rear Derailleur Long Cage Mega Drive US $10.00
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 Sram X9 Rear derailleur Medium Cage 9 speed 11 ratio US $18.16
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 Sram X9 Rear derailleur long Cage 9 speed 11 ratio US $7.50
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How to Adjust the bike rear derailleur ?
If you find that your chain is jumping back and forth between gears or getting stuck on a cog and needs an extra click or two to shift, you need to make an adjustment to your rear derailleur.
The easiest way to recognize that your derailleur needs adjustment is a rattling or clanking noise from the chain when you're pedaling.
Here's how to adjust the rear derailleur:
1. Use a bike stand or other mechanism to support the bike with the back wheel off the ground. You'll need to pedal the bike with one hand and shift with the other, so having the bike up off the ground is essential.
2. Start by examining how well the derailleur shifts to lower gears or to the larger cogs: Shift the derailleur until it moves the chain onto the largest cog. If it struggles to reach the largest cog, loosen the L-limit screw by a quarter- or half-turn until the chain easily reaches the largest cog. If the chain goes over the cog, tighten the L-limit screw to restrict the movement of the derailleur.
3. Shift the derailleur in the opposite direction to the higher gears, focusing on how well the chain shifts onto the smallest cog. If it hesitates to drop down, loosen the H-limit screw by a quarter- or half-turn until the chain sits easily on the smallest cog. If the chain is thrown off the freewheel to the outside, tighten the H-limit screw.
4. After the limits for the derailleur have been set, shift through all the gears, making sure that the chain moves to another cog with each click of the shift lever. If the chain hesitates or makes a lot of noise, you'll need to use the barrel adjuster to do some fine-tuning: Start with the chain on the smallest cog and, while pedaling, shift one click. The derailleur should move the chain instantly to the next cog. If it doesn't, turn the barrel adjuster about a quarter of a turn counterclockwise. If the opposite problem is true and the chain shifted two places, turn the barrel clockwise. Repeat this procedure for each of the cogs on the freewheel until the chain is shifting smoothly for each click of the shifter.
If the derailleur is shifting well going up to the larger cogs and slow or hesitating coming down to the smaller cogs there may be a kink or problem with the cable not moving smoothly through the housing. Remove the cable, inspect it, and replace it if it is kinked, frayed, or damaged.
The rear derailleur is a very exposed part of the bike and is prone to being bent or damaged if the bike falls over on top of it. If this happens, all you may need to do is bend the derailleur back into shape. Here's how:
1. Use one hand to insert an Allen wrench into the mounting bolt.
2. With the other hand wrapped around the body of the derailleur, leverage the derailleur back into place so it's suspended in a straight line under one of the cogs.
If you have problems aligning your derailleur, make a visit to your local bike shop. Most shops have a specialty tool called a derailleur hanger alignment tool, which is made to perform this task and measure the positioning.
About the Author
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Shimano Ultegra model 6500 rear derailleur US $15.95
|
SRAM RED 10SPEED ROAD BIKE REAR DERAILLEUR SS CARBON US $199.00
|
|
Sram X0 carbon rear derailleur 9 speed xo x0 US $60.00
|
SHIMANO SIS RD TY15 Bike Rear Derailleur 5 Speed NEW US $3.97
|
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Shimano Deore LX RD M 570 Rear Derailleur Long Cage Excellent Working Condition US $12.99
|
Shimano Deore LX 9 Speed Rear Derailleur Silver US $7.50
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SHIMANO ALIVIO RD M410 Rear Derailleur 7 8 SPEED NEW US $24.97
|
New Sunrace M30 Mountain Bike hybrid Rear Derailleur Long Cage Mega Drive US $10.00
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Sram X9 Rear derailleur Medium Cage 9 speed 11 ratio US $18.16
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Sram X9 Rear derailleur long Cage 9 speed 11 ratio US $7.50
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 SRAM XX BLACK BOX 10 SPEED REAR DERAILLEUR MID CAGE US $101.25
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 Shimano Eagle II and FE Derailleurs from Vintage 10 speed Ross Mountain Bike MTB US $9.95
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 Sachs PLASMA Centera Rear Derailleur US $40.00
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 Sram X9 rear derailleur MTB long cage US $55.00
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 Shimano stx rc rear derailleur US $4.99
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 Shimano XT RD M772 Rear Derailleur US $26.00
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 3pcs Titanium Ti Bolt XTR M980 M970 Front Rear Derailleur US $10.50
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 Sram XX Medium Rear Derailleur 10 sp US $60.00
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 Shimano Deore XT Rear Derailleur US $50.00
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 SRAM X9 10sp Rear Long Cage Derailleur Carbon Gray US $60.00
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 SRAM XX Mountain Bike Derailleur Set Front and Rear US $51.00
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 NEW OLD STOCK SHIMANO RD M310 ALTUS REAR DERAILLEUR 7 8SPD US $15.99
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 SRAM REAR DERAILLEUR FORCE 2012 US $100.00
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 Shimano RD M410 Alivio Rear Bicycle Derailleur 7 8 speed Black US $15.00
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 Shimano RD M737 Deore XT Rear Derailleur With New Sealed Bearing Lower Pulley NR US $5.00
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 NEW BICYCLE REAR DERAILLEUR HANGER PARTS 88 US $.99
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 Shimano XTR Long Cage 2x10 Rear Derailleur US $60.00
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 Sram X 7 rear derailleur US $1.00
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 NEW Shimano XTR M972 Mountain Bike Rear Derailleur 9 Speed SPD Bicycle MTB US $102.50
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 NEW Shimano Deore XT M772 Rear Derailleur Mountain Bike Long Cage Shadow US $99.99
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 Shimano Deore XT M771 Rear Derailleur Mountain Bike Medium Cage Shadow US $29.99
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 Shimano XTR RD M972 GS Shadow Carbon Rear Derailleur Medium Cage 9 Spd NEW US $170.00
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 SHIMANO STX RC MOUNTAIN BIKE REAR DERAILLEUR LONG CAGE RD MC38 MINT US $37.42
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 SHIMANO ALTUS MTBATB 7 8 SPEED REAR DERAILLEUR US $9.87
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 2011 SRAM X7 X7 CARBON REAR DERAILLEUR 10 SPEED GRAY US $49.87
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 Sram X5 rear derailleur US $30.00
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 SHIMANO TOURNEY 6 7 SPEED BIKE BICYCLE REAR DERAILLEUR US $8.87
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 Shimano XT RD M760 rear DERAILLEUR LONG CAGE $80 Value US $17.16
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 Shimano XTR RD M952 REAR DERAILLEUR Long Cage $110 Value US $46.05
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 New Sram X0 rear derailleur medium cage 9spd US $159.99
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 SHIMANO XT REAR DERAILLEUR US $4.25
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 derailleur hanger for 2010 GIANT Reign MTB D214 Pilo US $16.00
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 derailleur hanger for CANYON Nerve AM XC AL Grand Canyon CF D250 Pilo US $12.00
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 SRAM X5 X5 8 9 SPEED REAR DERAILLEUR LONG CAGE US $40.87
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 SHIMANO XT SHORT CAGE MOUNTAIN BIKE DERAILLEUR REAR RD M735 US $3.80
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 XTR Rear Derailleur No Reserve US $41.00
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 NEW 2011 Sram X7 X9 shifters and derailleurs Mountain bike 10 speed US $32.00
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 Sram X9 Rear Derailleur 10 Speed Long Cage US $75.00
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 NEW Rear Derailleur Guard Gear Protector Drop out Protector MTB Black Aluminum US $3.29
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 VINTAGE SHIMANO POSITRON BICYCLE 1 IN HEADSET MOUNT 5 SPD SHIFTER CABLE WIRE US $36.00
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