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Tourney Rear Derailleur RD-TY300 6/7 Speed Derailleur Direct Mount

Based on 343 reviews
Condition: New
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$19.88
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Availability: 20 left in stock
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Arrives Sunday, Nov 15
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At a glance

Condition
New
Model
RD-TY300
Weight
0.39 kg
Color
Black
Material
Aluminum
Mounting Type
Clamp-On Mount

Features 5

  • ModelRD-TY300-SGS; Bike 6/7 Speed Rear Derailleur for most kinds of bikes like mountain bike, hybrid bike, kids bike, cruiser bike etc.
  • FeaturesSmooth shifting, 6/7 speed derailleur is easy and fast to install. Bracket fit (under wheel nut) Long cage tourney derailleur, total capacity 43T, pulley/Teeth 13/13T. Low sprocket: Max. 34T; Low sprocket: Min. 28T; Top sprocket: Max. 14T; Top sprocket: Min. 11T.
  • TypeLong cage tourney derailleur, RD-TY300-SGS 6/7 speed derailleur is compatible with 11T /14T high speed gear.
  • StabilityMade of high quality durable aluminum alloy material and come with excellent shifting performance ensure your safe and stable while riding.

Description

Tourney Rear Derailleur RD-TY300 6/7Speed Rear Derailleur Direct Mount for Mountain Bike Road Bike Snowmobile Trail Bike Long cage tourney derailleur, RD-TY300-SGS 6/7 speed derailleur is compatible with 11T /14T high speed gear. Made of high quality durable aluminum alloy material and come with excellent shifting performance ensure your safe and stable while riding. RD-TY300-SGS; Bike 6/7 Speed Rear Derailleur for most kinds of bikes like mountain bike, hybrid bike, kids bike, cruiser bike etc. Smooth shifting, 6/7 speed derailleur is easy and fast to install. Bracket fit (under wheel nut) Long cage tourney derailleur, total capacity 43T, pulley/Teeth 13/13T. Low sprocket: Max. 34T; Low sprocket: Min. 28T; Top sprocket: Max. 14T; Top sprocket: Min. 11T. RD-TY300-SGS is compatible with 6 and 7-speed SIS INDEX variable speed transmission systems. Suitable for MTB, mountain bikes, road bikes, folding bicycles, commuter bikes, tricycles, eletric bikes etc.

Specs 15

Brand Relwears
Color Black
Material Aluminum
Item Weight 0.39 kg
Mounting Type Clamp-On Mount
Brand Name Relwears
Manufacturer Relwears
Item Highlight for Mountain Bike Road Bike Snowmobile Trail Bike Commuter Bike,Smooth Shifting,Durable,Anti-Chain-Dropping,Support 34T

Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Nov 15

Yes, absolutely! This item's return window has been extended for the holiday season: FREE refund/replacement until Jan 31, 2027.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


Nice and affordable Shimano Altus replacement
This replaced my Shimano Altus detailleur. Installation was effortless - truly a very easy fix with very little money investment. The adjustment screws were easy to use, and the overall mounting was trivial. The quality looks very solid and I have been very happy so far on my road bike. The only negative thing I noticed (but not worth subtracting a star), is that the the jockey wheel screw was tightened tremendously - making the initial install difficult, if you don't have a chain with a master-link. ... show more
Reviewed in the United States on July 13, 2026 by TechPerspective

Works - fits great like the original. See photo of the item that I bought it to replace
Item is as pictured in the listing. Quality is fine. Price was good. If you are researching which derailleur to get, be sure you get the kind with the correct/matching upper part - the part that bolts on to your bike frame. In the photo, you can see the broken/old derailleur that was on my bike. You can see how it's very similar to this new item listing. INSTALLATION TIP: I had never swapped a derailleur - if you haven't either, there are two methods. 1 - get chain tools and break the chain, but you'll need an extra chain link for when you're done. Your chain might have a disconnectable chain link - google that to see what they look like. Then you don't have to break the chain link. But, there is a special tool to "separate the chain link" which doesn't actually break it - you can find a youtube video of the correct way to slide out the pin of one chain link, just a bit, to disconnect another link from it. 2 - My bike chain does not have a breakable link, and I didn't know about the chain tool, so we kept the chain on. We used allen wrenches to unscrew the two gears from the old derailleur, and also the inside/back metal piece came off. Then we did unbolt it all and removed it. NOTE: take photos, and you'll need a helper. It took us 4 hands to hold the chain and the new derailleur to get it in place. Then we disassembled the new derailleur in the same way, bolted it on, routed the chain properly, and used the allen wrench to attach the gears. In retrospect, it was an awful way to do this, but we learned, and got it on fine. In summary, do research before you attempt to install a new derailleur, and the quality of this one is fine - it shifts/works. ... show more
Reviewed in the United States on August 30, 2026 by CH

Great upgrade
Well made and a great replacement for the cheap factory one. Buy it! Easy to install.
Reviewed in the United States on August 20, 2026 by Carolina Girl

We're fine and was what I needed
Worked fine
Reviewed in the United States on August 1, 2026 by Thomas Johnson

OEM Fit and Finish
Installed in minutes, replacing the same part on a 20” Trek Precaliber kids MTB. The previous was rusty had some wear and the B screw was no longer useful; it probably saw too many wrecks and mileage. After replacement with this new replacement I had the gears indexed within 10 minutes. Every shift is now on point and absolutely no complaints! If you replace a derailleur I’d always recommend to replace the cable too if it’s been some time since its last replacement. ... show more
Reviewed in the United States on July 31, 2026 by CoffeeTime

Install
Easy install on my bike I'm happy with it so far
Reviewed in the United States on September 11, 2026 by William funk

The greatest old bike replacement part I could find
this is a great replacment for an older mountain bike... put in on an old Specialized Rockhopper from the 80's. It on had a 5 gear hub in rear but it works like a champ. I did have to drill out cable hole because my shifter cable was huge ... gigitty but for the price it was amazing.. 10/10
Reviewed in the United States on August 17, 2026 by Amazon Customer

Works great
Used for couple hundred miles. So far working great!
Reviewed in the United States on October 6, 2026 by Rafael Cottica
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