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Retrospec Mantra Fixie Bicycle with Sealed Bearing Hubs

3.2 3.2 out of 5 stars 20 ratings
Currently unavailable.
We don't know when or if this item will be back in stock.
Bike Type Fixed-Gear Bike, Commuting Bike
Brand Retrospec Bicycles
Number of Speeds 1
Suspension Type Rear

About this item

  • Fixed-gear commuter bike with sealed bearing hubs, integrated seat clamp, platform pedals, water bottle mounts, and kick stand mount
  • Fixie bike with Super Deep-V rims and a flip-flop hub so you can ride fixed-gear or single-speed on a freewheel
  • Comes standard with Retrospec FGFS straps and reflectors
  • Hand-built and tig-welded UrbanComfort frame is perfect for commuting to work, cruising on the beach, competing in an alley cat race, and everything in between
  • Equipped with Kenda Kwest tires, the perfect commuter tire designed with smooth rounded tread with large water dispersion grooves

Product Description

Retrospec Bicycles brings you the industry-leading fixie: the Mantra. This model of the fixed-gear bicycle incorporates simplicity and ingenuity into its design. Los Angeles-based company Retrospec Bicycles designs, manufactures, and distributes these babies with an array of upgrades, most impressively of which are the sealed cartridge bearing hubs. These hubs are a vital element for city street cyclists. Not only do they improve the smoothness of your two-wheeled excursion, but they also ultimately increase the durability and lifespan of your wheels. The hand-built tig-welded "urban comfort" design high-tensile strength steel frame and fork have bar spin clearance, horizontal drop outs, and no toe overlap. Other notable upgrades include platform pedals with included FGFS straps (removable), Kenda Kwest Commuter tires, integrated seat post, bike tools included, and awesome double-wall super deep-v Stars rims. We only include brand name components from the highest end suppliers on all of our bikes, so you don't have to worry about switching bits and pieces out. Our Mantra also features a flip-flop hub on the rear wheel. This means you can ride fixed-gear or single-speed. We like having choices and we know you do, too. By simply flipping the rear wheel around, you can choose to transform you bicycle from a fixie to a single-speed with a freewheel and back again. Rather than riding fixed-gear, during which your motion and exerted energy correlate to the distance travelled, you can ride a freewheeling bicycle, like every other bicycle you've ever had the pleasure of riding. It's up to you. What are you waiting for? Get riding.

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Retrospec Mantra Fixie Bicycle with Sealed Bearing Hubs

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Customer reviews

3.2 out of 5 stars
3.2 out of 5
20 global ratings

Customers say

Customers like the appearance of the bicycle, mentioning it looks cool and slick. Opinions are mixed on the quality.

AI-generated from the text of customer reviews

5 customers mention5 positive0 negative

Customers are satisfied with the appearance of the bicycle. They mention that it looks cool, the paint looks slick, and is well made.

"I won't cover the stuff the other reviews do: the bike looks cool, it's well made, etc...." Read more

"...Maybe I just got a lemon.First, the pros. It looks pretty, so if that's your primary concern then read no further...." Read more

"...Other than that, this bike is pretty cool...." Read more

"...Paint looks slick and have gotten so many compliments about the bike" Read more

5 customers mention3 positive2 negative

Customers are mixed about the quality of the bicycle. Some mention that it's well-made and solid while riding, while others say that it has low quality crank and pedals. They also say that the quality and packing is not good.

"...n't cover the stuff the other reviews do: the bike looks cool, it's well made, etc...." Read more

"...The geometry is great, it's lightweight and nimble. Most of the parts included are solid, though I swapped quite a few of them out immediately with..." Read more

"...I am returning this bike as the quality and packing is not good. Had issues with two bikes...." Read more

"...The bike is really smooth and solid while riding...." Read more

Low quality crank and pedals - replacement bike had bent frame and scratches.
1 Star
Low quality crank and pedals - replacement bike had bent frame and scratches.
This is my first fixed gear and I really loved it. After only three days of riding, the threads on the crank (that connects to the left pedal) grinded away. Amazon is sending me a replacement bike but now I have rebuild the bike again and then rebox the old one to ship it back. I could also just replace the crank part but it is a big hassle (and I should not have to pay for it since I had the bike for a week). I fear this might happen again since it only took about < 30 miles of riding and I see a few others have seen the same issue. I will update this review after my second go around with this bike.Update 7/11/2016 - I received the replacement bike and the frame is bent and the crank is scratched. I am returning this bike as the quality and packing is not good. Had issues with two bikes. I am happy Amazon has great customer service but it is a pain to return two bikes.
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Top reviews from the United States

Blake3456
5.0 out of 5 stars Review for the Bike Illiterate like me
Reviewed in the United States on June 22, 2014
Verified Purchase
I won't cover the stuff the other reviews do: the bike looks cool, it's well made, etc.

Before buying this bike I did not know what a "fixie" was. I was simply looking for a cheap, good bike for urban cycling. You can switch this bike between a fixie and a single speed by flipping the back wheel (there are 2 different back gears on the wheel that change the setting).

Fixie (this is how the bike comes in the box): When the bike moves forward, the pedals move forward. They move in sync. Pros of fixie: Zen-like connection with the bike, you feel like you're one with the bike. You can slow down the bike by slowing down the pedals. The bike literally does not make a noise (no clicking) which is pretty cool.
Cons of fixie: You cannot coast on the bike. It can be a little hard on your knees if you're not used to it. If you're going down a hill the pedals start moving really fast. You cannot jump or hop very easily b/c the pedals are constantly moving (You cannot push off them in a level state).

Single-Speed: This allows you to coast. The pedals do not move with the wheels. Pros: you can coast. Cons: Clicking noise when you coast. The only way to slow down the bike is with the front brake (which can be hard at times).

Assembly: This bike does NOT come with assembly instructions. I don't know much about bikes so I found myself googling for instructional videos. Some of these are pretty good, but they assume you have some existing knowledge. If you like detailed instructions it's pretty frustrating (the videos make big jumps like "and then just install the wheel" and you're like "well how the heck do I do that??"

***IMPORTANT: you need to have some grease and grease the pedal screw threads prior to installing them. I did not do this and I had to take it to a bike shop and get it fixed for $65 - Had to buy a new crank shaft & pedals b/c I stripped both threads. Luckily I live close to a Retrospec dealer and they fixed it with original parts. The guy there said this was a common problem.***

Hope that helps!
37 people found this helpful
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Adam W
3.0 out of 5 stars Meh.
Reviewed in the United States on July 19, 2014
Verified Purchase
I bought this bike to commute to and from work a few times a week in NYC. I've been mountain biking (DH racing and freeride) for 10 years, and I wanted a simpler, lighter bike that could get me from point A to point B with relatively little maintenance. After riding this bike for a few weeks, I'm not inclined to recommend this bike. Maybe I just got a lemon.

First, the pros. It looks pretty, so if that's your primary concern then read no further. When it's working, I have no complaints. The geometry is great, it's lightweight and nimble. Most of the parts included are solid, though I swapped quite a few of them out immediately with parts I had laying around. If you want to ride fixie (as I did for the first few days) you probably won't run into the issues I did. Frame is very solid and feels like it'll hold up for a long time.

That being said, I have quite a few issues with my bike. It's required more maintenance and trips to my local bike shop than any bike I've ever had.
-The paint is not durable, at all. I don't baby my bikes, and after 3 weeks of riding it looks like this thing fell off a cliff.
-I switched to SS and threw on a rear brake. There is a screw down plate on the back of the non-drive side dropout to secure the rear wheel and ensure the chain has proper tension. It really should be on both sides. The axle is secured with nuts on both sides. Mine came pretty much stripped, so once I changed to SS i couldn't get the nut back on. If the screw down plate was on both sides it wouldn't have been a huge issue.
-Tires are garbage. They're pretty much toast after three week of occasional riding.
-The front brake made a weird clicking noise every time I hit the brakes. I took it off completely, my bike shop said it was warped and I just threw it in the trash.

I want to like this bike. I think it has potential and I'm pretty sure I just got a defective one. The paint is a non issue for me, but probably is for some people. The components I can switch out, whatever. I just feel like QC should be a little better.
21 people found this helpful
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Yosita Yeerong
4.0 out of 5 stars this bike is pretty cool. I use it for school and it ...
Reviewed in the United States on March 3, 2015
Verified Purchase
My innertube popped twice; this was because I assumed that there was rimtape in the front wheel (but it did not come with it :()

Other than that, this bike is pretty cool. I use it for school and it hasn't had any other problems other than the missing rimtape which costed me $20 bucks (innertube x2 and rimtape). If you check that both wheels come with rimtape, you should be fine!!
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Christopher Robinson
5.0 out of 5 stars Great Value + sizing advice
Reviewed in the United States on April 11, 2014
Verified Purchase
The first bike Amazon delivered me was damaged in shipping which was a bummer but the return was super easy. The assembly was fairly easy, although I do have a good deal of experience building and repairing bikes. The most difficult part will probably be getting the front brake adjusted so the pads are hitting where they are supposed to. If all else fails take it to a shop and they'll probably do it for free (if you know what you're doing it takes like 30 seconds). There are also lots of online tutorials for bike assemblage and repair.

The bike is really smooth and solid while riding. The seat is a bit hard, and will take some getting used to, but this is the case with most road bike seats. Anatomically it feels correct (not too wide, doesn't pinch nerves).

Sizing Advice:

I am 5'10 and have a 30 inch inseam. I was debating for a long time whether to get the small (49cm) or medium (53 cm). I ended up getting the small and I'm glad I did. The bike has a "traditional" geometry meaning the top tube is not slopped at all. if you have between a 29-32 inch inseam I would definitely get a small.

Buy a great lock for this bike because people will be envious!
2 people found this helpful
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