Best Rear Bike Derailleurs
It's direct-attach and features advanced Shimano technologies, like Advanced Light Action design and low-friction link pivot bushings for crisp, smooth and reliable shifting. Enter your model number to make sure this fits.
Reviews
Find Best Price at Amazon"Have been fighting with indexing gears for ages due to the Barrel Adjuster screw Threads Not Cut Straight."
"Bought my kid an older 24" Rockhopper that the rear derailleur was shredded."
"I received the Acera derailleur thinking it will only be a slight improvement over the Tourney derailleur series."
"Converted 7 speed freewheel to cassette on mountain bike worth keeping."
"Worked great on my bike though not the actual part needed."
"Shimano Acera is an excellent derailleur for low to midrange bicycles."
"Very pleased."
"worked as a replacement for my m340, the adjustment screws are in a bad place on this derailer, but hopefully you wont have to make many adjustments to this component."
Shimano proven technologies deliver durability and reliability while offering outstanding performance at an affordable price. 9-speed compatible.
Reviews
Find Best Price at Amazon"This is a great derailleur."
"This has large capacity and easily shifts my 8 speed commuter with 11-32 cassette and road triple combination."
"This replaced the OEM Deore DX derailleur off a 90's mountain bike."
"Versatile rear derailleur."
"Arrived on time and so far it works well."
"Shifts fast and smooth."
"Once I got it on I had problems with shifting but it turned out the problem was with the cable housing, it was old and springy and the bike tech I consulted let me know so all I had to do was replace that as well and the everything worked great."
"This was a big improvement for my rigid mountain bike I use (with slicks in the summer, studded tires in the winter) as my commuter."
The new derailleur also boasts an easy-to-adjust chain stabilizer and a new Shadow design with optimized slant for more stable positions in any gear. Your shift housing can enter the stop on the derailleur without the traditional loop of excess housing that often was the victim of contamination and a source of poor performance.Shimano uses tried-and-true aluminum components in the XT derailleurs. Cage Length: [gs] medium, [sgs] long.
Reviews
Find Best Price at Amazon"Who, super great price."
"XT performance its probably the best bang for your buck, i switched my 3x9 drivetrain for a 1x11."
"Excellent product Shimano deore XT."
"Changed up from 1x10 sram x5 to this XT Derailleur for a 1x11 , 11-42 teeth cassette, xtr 11 speed shifter and with a little adjustment shift's flawless through all gears."
"I love this derailleur... that's all I have to say about that."
"As decribed, works perfect."
Best Front Bike Derailleurs
Shimano Tourney front derailleur dual pull and works on mountain double or triple drive trains. Dual Pull Design: Compatible with top or bottom routing.
Reviews
Find Best Price at Amazon"The derailer that came with the bike was easily bent and poorly functioning to start with. Make sure to match up the adhesive diagram on the derailer with the big chain ring teeth and pull the wire up and around and through the black plastic groove and down into the screw to compress the wire."
"Add a weak shifting spring to the mix and you have a derailleur that makes clicking noises when attempting to shift to Granny on the Front Chain ring while it's still on high on the Freewheel...When you can get a front Derailleur that is strong enough to cover up for your mistakes and actually FORCE the chain to jump when it's way out of line you can smile about it..I keep up bikes for kids who do just that."
"Bought this to replace C101 front deraillleur on Trek hybrid."
"i would put this on my high end piece anytime without fear."
"This works great on my bicycle."
"suitable replacement for OEM derailleur."
"It would have been nice if they had a way to open the slot instead of breaking the chain to pass it through during install."
"Did not include full set of spacers, and consequently does not fit."