Retrospec mantra fixed gear single speed bike

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Details

You know the Mantra. But now it’s time to meet the Mantra 2.0. It’s been designed and built with the same kind of love and enthusiasm for cycling. Our newest version of our classic fixed-gear / single-speed bike now comes standard with front and rear Promax brakes and machined sidewall rims. This set of brakes is precise with quick response time. Now with dual braking, you have exponentially more control over your ride, your speed, and, of course, your stopping.

Our UrbanComfort frame is hand-built, tig-welded, double-butted, and lightweight. The high-tensile strength steel diamond frame is the perfect riding companion as you cycle your way to work and home and play and everything in between. The frame and fork have bar spin clearance, horizontal dropouts, and no toe overlap. The Mantra 2.0 comes standard with sealed cartridge bearing hubs to keep your bike clean and healthy. Less dampness, water, and grime can get into the delicate parts of your bike when the hubs are sealed. This means less required maintenance and a longer living bicycle.

The Mantra 2.0 is just as versatile as its predecessors. It’s also equipped with a flip-flop hub, which means you can ride your bike either as a fixed-gear or a single-speed with a freewheel. When you ride on a fixed-gear, every motion you make moves the bike. You always have to be moving if you want the bike to be moving. When you ride on a single-speed bike, the rear wheel is free-moving so you can cruise without having to pedal.

The Mantra 2.0 comes installed on the single-speed side. This is a bike you can ride regularly and quickly and easily transform into a fixed-gear whenever you like.

Specs

Frame Fork Rims/Wheels Hubs Spokes Tires Crankset Bottom Bracket Chain Rear Cogs Handlebars Tape/Grips Stem Brake Levers Brakes Pedals Seat Post Seat Binder
High Tensile Strength Steel, Horizontal Drop Outs
High Tensile Strength Steel, Tig Welded 1 1/8" Threadless
Alloy Double Wall super deep-V Star
Retrospec Sealed Cartridge Bearing
black stainless steel spoke 32
Kenda CommuterTires 700x23
Alloy Forged 3-piece 165mm arms, 46T
Sealed Cartridge Bearing NECO
KMC
Flip-Flop Hub with 16T Fixed-Gear and Freewheel
Lightweight Alloy Riser Bar 520mm, 25.4
Kraton Rubber
Alloy Promax
Radius Lever
Alloy Front Promax
BMX Style Platform Pedal with BMX Straps
Alloy 25.4
Alloy Integrated

* Subject to change without notice.

Reviews

***Free Light Combo and Helmet With Purchase ($40 value) - Critical Silas helmet and Amsterdam 5 light set*** 

  1. Bike will be special ordered for you. You'll be able to pick up your bike 10-14 days after we get your order 
  2. We'll build, tune, and set it up for free and notify you when its ready for pick up
  3. If your bike is a gift, we'll store it for you (Free for up to 30 days) or deliver it for $25
  4. Each Bike Comes with a 5 year warranty on the frame, 1 year warranty on the parts and a FREE Post Purchase Tune up (100 miles or 30 rides)

Our newest version of our classic fixed-gear / single-speed bike now comes standard with front and rear Promax brakes and machined sidewall rims. This set of brakes is precise with quick response time. Now with dual braking, you have exponentially more control over your ride, your speed, and, of course, your stopping.

Our UrbanComfort frame is hand-built, tig-welded, double-butted, and lightweight. The high-tensile strength steel diamond frame is the perfect riding companion as you cycle your way to work and home and play and everything in between. The frame and fork have bar spin clearance, horizontal dropouts, and no toe overlap. Mantra 2.0 comes standard with sealed cartridge bearing hubs to keep your bike clean and healthy. Less dampness, water, and grime can get into the delicate parts of your bike when the hubs are sealed. This means less required maintenance and a longer living bicycle.

Mantra 2.0 is just as versatile as its predecessors. It’s also equipped with a flip-flop hub, which means you can ride your bike either as a fixed-gear or a single-speed with a freewheel. When you ride on a fixed-gear, every motion you make moves the bike. You always have to be moving if you want the bike to be moving. When you ride on a single-speed bike, the rear wheel is free-moving so you can cruise without having to pedal.

Mantra 2.0 comes installed on the single-speed side. This is a bike you can ride regularly and quickly and easily transform into a fixed-gear whenever you like.

We have very high standards. Every single element that goes anywhere near our bikes undergoes serious scrutiny. The Kenda commuter tires we pick have a unique tread with water dispersion grooves. There is more surface area on these tires and water travels through the channels on the tire. This means you have more traction and better grip on the road but also minimal resistance. The double-wall super deep-V Star rims with a machined braking surface and the always dependable KMC chain ensure a smooth ride.

Is a single speed bike the same as fixed gear?

So what is the difference? Single speed bikes are fitted with a freewheel, whereas fixed gear bikes are not. On a fixie the rear cog is joined with the rear hub, so when the wheel turns, the cog will turn too.

Is a fixed

Fixed-gear bikes make great winter bikes, but they're also excellent urban rides, provided you don't have to tackle any long, steep hills. The lack of shifters means there's one fewer distraction, and the ability to control your speed directly through the transmission gives you a useful extra degree of control.

What does fixed gear single

A fixed-gear bike, also known as a fixie, is a single-speed bike that has no freewheel, which means there's a very direct relationship between the turning of the pedals and the turning of the back wheel.

Why do fixies have no brakes?

Fixed gear (or fixie) bikes typically don't have brakes because they are most commonly used in velodrome competitions. As a result, there is little need to brake or slow the bike down. In a controlled environment like this, speeds are much higher than riders typically achieve on the roads.

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