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Aerial 29 Mountain Bike Disc Hydraulic Lock Fork 1-1/8" 29er x120mm

4.2 4.2 out of 5 stars 33 ratings
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About this item

  • Steerer: 28.6 mm 7050 Aluminum 1 1/8"
  • Size: 29er
  • Casting MAGNESIUM 9MM Open Dropout
  • Adjustment: Air spring, Hydraulic Lock-out
  • System: Oil, Air

Product Description


Established in 1972 ,Dah Ken Industrial Co., Ltd. was initially set up to produce car and motorcycle parts.It wasn't until 1990 that the company decided to focus on the production of front suspension forks for bicycles. With almost twenty years of experience and technical expertise in manufacturing suspension systems under its belt ,the company quickly established itself as a leader in the bicycle industry. The RST brand achieved low pricing and widespread use of shock absorbers in the global bicycle market,meaning shock absorbers were no longer restricted to the realm of highly priced bicycles.More recently,the company has diversified further by branching out into the design and manufacture of high-performance barbeque grill units.

Size: 29er Model: Aerial 30 RL Steerer: 28.6 mm 7050 Aluminum 1 1/8"" Steerer length to Crown: 255mm Blade Length to Crown: 530mm Crown Pitch: 130mm Crown: Aluminum Black Coating Stanchion: 32mm Steel Ti Color Casting MAGNESIUM 9MM Open Dropout Adjustment: Air spring, Hydraulic Lock-out System: Oil, Air Features: Air Spring, Hydraulic Lock-out System Travel: 120mm Brake Type: Post Mount Disc Brake Weight: 2.40kg=5.29 lbs Made in Taiwan Warranty: One year

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RST

RST Aerial 29 Mountain Bike Disc Hydraulic Lock Fork 1-1/8" 29er x120mm

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Customer reviews

4.2 out of 5 stars
4.2 out of 5
33 global ratings

Customers say

Customers like the performance, value, quality, ease of installation, shape and smoothness of the outdoor recreation product. For example, they mention it works quite well, is the best bang for the buck, looks sturdy and that it's easy to install. That said, some are happy with smoothness.

AI-generated from the text of customer reviews

6 customers mention6 positive0 negative

Customers are satisfied with the performance of the outdoor recreation product. They mention that it works well and is a good performance product.

"Works well, looks good." Read more

"...Look sturdy though and work as described. Disappointed about the star nut though otherwise plug and play for most big box store bought bikes." Read more

"...changed, maybe airlock, but this eve it straightened out and works quite well.So uppped to four stars...." Read more

"Installed smoothly. Appears to operate well so far" Read more

5 customers mention5 positive0 negative

Customers appreciate the value of the outdoor recreation product. They mention it's the best bang for the buck.

"Great fork for the money, but you gotta know what you need and getting. I'm a MTB nubie and General trail rider...." Read more

"...I would and have already recomeded these to a friend . best bang for the buck I've found" Read more

"...do require some cleaning often to keep stiction down, still a very nice budget upgrade." Read more

"Excellent Value..." Read more

4 customers mention4 positive0 negative

Customers are satisfied with the quality of the fork. They mention it's a great entry-level fork and a nice improvement for a low-priced MTB.

"Great fork...ride smooth...love it." Read more

"Nice product..." Read more

"Nice, inexpensive improvement for a low priced MTB..." Read more

"Great entry level fork!..." Read more

3 customers mention3 positive0 negative

Customers find the installation process of the outdoor recreation product easy.

"...It was easy to install don't forget to remove the fork race at the base of your old forks to be transferred over...." Read more

"Replaced Suntour XCT 100mm w/ this shock. Installation fairly simple. Should have ordered a new star nut, reused star nut off other fork...." Read more

"Installed smoothly. Appears to operate well so far" Read more

3 customers mention3 positive0 negative

Customers are satisfied with the shape of the outdoor recreation product. They mention that it looks sturdy and works as described.

"...Look sturdy though and work as described. Disappointed about the star nut though otherwise plug and play for most big box store bought bikes." Read more

"...I got exactly what I expected, on time, and well packaged,in good shape. 😎..." Read more

"...Despite being made in Taiwan, this fork has held up under fairly difficult conditions...." Read more

3 customers mention3 positive0 negative

Customers find the ride of the outdoor recreation product smoother and better than with coil spring shocks.

"...I'm still getting used to it, but the ride is SOOO much smoother. So far I'm very happy, hope it holds up!" Read more

"...although not recommended} Took to the trails. Feels a lot better than coil spring shocks. Took 4' drops, fork bottomed out...." Read more

"Great fork...ride smooth...love it." Read more

Great upgrade for entry MTB bikes
5 Stars
Great upgrade for entry MTB bikes
Great fork for the money, but you gotta know what you need and getting. I'm a MTB nubie and General trail rider. Added this fork to my 2016 Trek Marlin 5. This is a great upgrade for an entry level mountain bike and riders like me. If you look at the RST website this fork falls under the category of cross country. So it's not for downhill, big jumps or drops. But it's a fantastic upgrade over the stock coil spring forks that come on most entry bikes. The previous review that stated a sticker says it's not for off-roading isn't a fair comment. The sticker says it's not for downhilling; a very different message. Had mine installed for $30 at a local bike shop, and the mechanic said he looked it up and it had great reviews. It will ride MUCH softer than a stock coil spring fork. I'm still getting used to it, but the ride is SOOO much smoother. So far I'm very happy, hope it holds up!
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Top reviews from the United States

Sam A.
5.0 out of 5 stars Nice product
Reviewed in the United States on April 5, 2020
Verified Purchase
Works well, looks good.
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Dr. O
4.0 out of 5 stars Excellent Value
Reviewed in the United States on May 31, 2014
Verified Purchase
For my purposes as a recreational mountain bike rider, this fork does the trick at a fraction of comparably spec'd forks. I wanted air and long travel and the fork meets my needs perfectly. No air leak. Easy smooth adjustment of lock out. I have put about 15 hours of hard riding on it, steep up and down, without any issues. While I cannot address longevity, I figure even if it does not last as long as better known brands, I will still be money ahead even if I had to replace it prematurely.
2 people found this helpful
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MJBFWTX
5.0 out of 5 stars Great upgrade for entry MTB bikes
Reviewed in the United States on June 15, 2017
Verified Purchase
Great fork for the money, but you gotta know what you need and getting. I'm a MTB nubie and General trail rider. Added this fork to my 2016 Trek Marlin 5. This is a great upgrade for an entry level mountain bike and riders like me. If you look at the RST website this fork falls under the category of cross country. So it's not for downhill, big jumps or drops. But it's a fantastic upgrade over the stock coil spring forks that come on most entry bikes. The previous review that stated a sticker says it's not for off-roading isn't a fair comment. The sticker says it's not for downhilling; a very different message. Had mine installed for $30 at a local bike shop, and the mechanic said he looked it up and it had great reviews. It will ride MUCH softer than a stock coil spring fork. I'm still getting used to it, but the ride is SOOO much smoother. So far I'm very happy, hope it holds up!
Customer image
MJBFWTX
5.0 out of 5 stars Great upgrade for entry MTB bikes
Reviewed in the United States on June 15, 2017
Great fork for the money, but you gotta know what you need and getting. I'm a MTB nubie and General trail rider. Added this fork to my 2016 Trek Marlin 5. This is a great upgrade for an entry level mountain bike and riders like me. If you look at the RST website this fork falls under the category of cross country. So it's not for downhill, big jumps or drops. But it's a fantastic upgrade over the stock coil spring forks that come on most entry bikes. The previous review that stated a sticker says it's not for off-roading isn't a fair comment. The sticker says it's not for downhilling; a very different message. Had mine installed for $30 at a local bike shop, and the mechanic said he looked it up and it had great reviews. It will ride MUCH softer than a stock coil spring fork. I'm still getting used to it, but the ride is SOOO much smoother. So far I'm very happy, hope it holds up!
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16 people found this helpful
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Harvey Coy
4.0 out of 5 stars It was easy to install don't forget to remove the fork race ...
Reviewed in the United States on April 21, 2018
Verified Purchase
This is defiantly a up grade if you have spring loaded shocks. However be prepared to do a little work. The neck will certainly have to be cut. There is no star nut so order one or be prepared to reuse your own. Note it's worth the money to just buy one then to work yours out. If your thinking of going from 100 to 120 it will make your bike less agile on sharp turns. If you don't have a shock pump order it with the shocks reg pump will not work. Fork comes with about 45 psi in it but if your an adult you will need to add air or be thrown over the handle bars just stopping. My shimano disc brakes were direct bolt on without the bracket. It was easy to install don't forget to remove the fork race at the base of your old forks to be transferred over. There is a special tool to take it off but o did it with a rubber hammer and a chisel very carefully. Be prepared to regrease all your headset bearings good time to clean them. After you ride just a little go back and recheck your headset. Mine seated better after just a very short ride. Suggested before doing any big down hill. I like the lock out for road work but only about 5 settings to dampen the forks... There is no rebound adjust these forks. Look sturdy though and work as described. Disappointed about the star nut though otherwise plug and play for most big box store bought bikes.
7 people found this helpful
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Ryan H.
3.0 out of 5 stars Nothing special for its price point. Spare/replacement parts nonexistant
Reviewed in the United States on February 10, 2019
Verified Purchase
A review from an adept rider and mechanic
I purchased this fork for my xc bike a year ago. A month ago the fork became pretty sticky in its motion. I didn't figure any of the major components were shot like the lockout or air chamber because I never took that bike on any rough terrain (mostly fire roads and flowy single track). I went to work on the fork with the intention of removing the lowers, cleaning out the dirt and reapplying the grease. RST doesn't offer a maintenance manual but I am pretty adept with fork repair so I dove in. RST also doesn't recommend any particular type of grease for their forks nor do they sell replacement parts like seals, lockouts, and air chambers. Basically you use this fork until it's toast. Luckily cleaning up the lowers did the trick for my issue however. I recommend applying stanchion oil (many brands available on Amazon) before every ride, cleaning out the lower legs every 50-100 miles, and not taking the fork into any situation where the front tire breaks contact with the ground if you want to improve its longevity.

For the price, you're not really getting a great deal here. Although it is a step above a coil shock like the Sr Suntour XCT or the Rockshox xc that comes stock on most entry level bikes, it is rather mediocre. This is the most basic air fork on the market.
Pros:
-Lockout
-Air system and lighter than coil forks
-one of few 120mm travel forks manufactured with a 1 1/8 inch steerer tube
-RST is a reputable fork company compared to random Chinese forks that you find on ebay or aliexpress
Cons:
-No rebound
-No Maintenance manual
-No replacement parts
-Lower leg material is extremely soft
6 people found this helpful
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anthony
5.0 out of 5 stars ... few rides on these forks now and I absolutely love them. I am definitely no pro but I ...
Reviewed in the United States on December 14, 2014
Verified Purchase
I have to say I have a few rides on these forks now and I absolutely love them .I am definitely no pro but I ride the trails pretty hard nothing crazy but 2 foot drop offs and smaller hits pretty regularly they take it no prob and are definitely a big upgrade from my sr suntours . my brother rides a much much more expensive fork and I like the RST forks every bit as much .I am about 160 lbs and to set the sag for my weight was around 70 lbs of air I found I prefer mine a little stiffer so I run them at 90 lbs and they are perfect . I would and have already recomeded these to a friend . best bang for the buck I've found
2 people found this helpful
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Mauricio Salvador
5.0 out of 5 stars Good performance product once correctly mounting
Reviewed in the United States on March 2, 2020
Verified Purchase
Excelent Product & relacion cost - efficiency
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Barney
4.0 out of 5 stars Nice, inexpensive improvement for a low priced MTB
Reviewed in the United States on September 13, 2015
Verified Purchase
Since installing it, I've experienced much better handling over roots and small rocks than with the suspension fork that it replaced (Suntour undamped coil spring that came stock on my Mongoose MTB purchased from Walmart). I can also cross small logovers a little softer now.
3 people found this helpful
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