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Alpha Fat Bike Charcoal

Alpha Fat Bike Charcoal

Rated 4.4 out of 5 stars
23 Reviews
Stay in charge with the Alpha FAT Bike. Featuring a industry-leading MTB geometry, the Alpha FAT Bike is designed for trail riding and maximum amounts of fun.
Regular price $419.99
Regular price $599.99 Sale price $419.99

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DescriptionSpecificationsGeometryShipping & Warranty

Stay in charge with the Alpha FAT Bike. Built tough with huge tyres to tackle the toughest terrain. Mud, snow, sand - ride it all.

The Reid Alpha is part of our performance Fat Bike range. It runs huge 4.0” tyres for amazing grip and the ability to traverse terrain that regular mountain bikes can’t even dream of attempting. If you want to explore new trails, rugged terrain and a riding experience like no other – the Reid Alpha will take you there.

The Alpha features a performance MTB bike geometry and is built around a stiff and lightweight Hydroformed 6061 Alloy Fat Bike Frame with steel fork. With an aggressive trail geometry and performance components, this Fat Bike is built to be ridden hard over all terrain from deep sand, sticky mud and snow. Get the full Fat Bike experience at an unbeatable price.

This Fat Bike benefits from an upgraded lightweight alloy Lasco crankset, newly improved disc brakes and an upgraded Shimano 7-speed shifter and gearing. The 26x4.0 tyres leave a commanding footprint that can run as low as 10PSI to help you roll over anything on your way to the top!

Key Features: 

  • Huge 26 X 4.0 Tyres to tackle terrain you wouldn’t even attempt on any other bike
  • Lightweight alloy frame with aggressive trail geometry
  • Shimano 7-Speed thumb operated shift gearing to keep you moving when the going gets tough
  • Shimano Tourney Shifters and Derailleurs
  • Powerful mechanical disc brakes for sure control in all conditions


Frame Alloy
Forks Steel
Wheelset / Rim 3/8\
Brakes Mechnical disc
Tyres 26\ x 4.0 mtb black
Hubs 3/8\
Freewheel / Cassette Shimano 7-speed freewheel (14t-28t)
Rear Derailleur Shimano ardty300d
Handlebars Alloy
Stem 1 1/8\
Shifters Shimano tourney rs35-7r revoshift
Bottom Bracket Neco b910 sealed bearing
Brake Lever Promax alloy
Pedals Nylon platform 9/16\
Chain Kmc z51
Grips Black mtb 125mm
Saddle Black mtb
Seatpost Alloy 27.2mm micro adjust 300mm
Kickstand Included
Bell Included
We continually work to improve our products so designs and specifications are subject to change. Please contact us to confirm if you have any questions.
Medium Large X-Large
Top tube length 615 630 645
Seat tube length 427 478 528
Head tube length 121 121 132
Seat tube angle 65 65 65
Head tube angle 70 70 70
RC length 470 470 470
BB drop 68 68 68
Fork offset 47 47 47
Front centre 683 698 714
Wheelbase 1145 1160 1175
Full fork length 446 446 446
*Length measurments are in millimeters, unless otherwise stated.

Our Alpha Fat Bike Charcoal includes the industry-leading Reid Warranty: lifetime on frame and rigid forks, 2 years on non-consumable parts and a free tune-up to get you going. Test ride in-store or shop online to enjoy a 30 Day Test Ride to guarantee you get a great deal.

Click and Collect

Buy online and collect in-store from our Richmond (Melbourne) flagship store fully assembled by our bike mechanics and ready to ride.

Be advised that your chosen store will phone you within 24 hours of ordering to confirm a collection date based on your availability, the location of stock and your chosen collection store.

Home Delivery

Our bikes are shipped in a box 85% assembled and require basic assembly, like turning handlebars and inserting pedals. Check out our Assembly Videos that give instructions on how to do this.

Buy One, Plant One

Since January 2020 we have partnered with Eden Reforestation Projects to donate enough money to pay a local person a fair wage to grow, plant and guard to maturity 1 native tree for every bike we sell.

We've now planted more than 200,000 trees and counting.

Learn more
Rated 4.4 out of 5 stars
Based on 23 reviews
Total 5 star reviews: 15 Total 4 star reviews: 5 Total 3 star reviews: 1 Total 2 star reviews: 1 Total 1 star reviews: 1
87%would recommend this product
Value for moneyRated 4.7 on a scale of 1 to 5
Component qualityRated 4.3 on a scale of 1 to 5
23 reviews
  • SM
    Simon M.
    Verified Buyer
    I recommend this product
    Age Range 35 - 44
    How often you ride Everyday
    Reasons you ride Commuting, Fitness, Fun, Outdoors, Easy parking
    Rated 4 out of 5 stars
    10 months ago
    A good entry level fat tire bike, but room for improvements

    The Alpha is a good entry level fat tire bike. It's not too heavy, frame and bar are aluminium. It's already a non threaded headset. The wheelset is fine, it is properly trued and the tires are good.

    However, there's still room for improvements which wouldn't add much costs at production

    - the axle bearings had far too much tension on my bike, which limits the lifespan of the bearings and slows the bike down

    - the headset tension bolt had been tightened far too much (normally it's just 3 Nm)

    - the bottom bracket was mounted without any grease in the thread. If this is not corrected it will corrode into the frame over time and the frame can suffer damage if it has to be removed if it's worn one day

    - the gearing is unnecessary high. It's clear we will not see a 1 x 12 shifting in this price class, but the smallest gear is already too big to use it properly as a beach bike or at smaller hills. A smaller front chain ring would be a relatively production cost neutral solution, or a 14-34 mega range freewheel cassette (the original freewheel cassette is 14-28, but already Shimano). I retrofitted mine with the mega range cassette. The Tourney derailleur works fine, even if it's the entry level group set.

    The original gearing would make sense on a road bike, but not on a fat tire bike which is never ridden that fast.

    - the brakes leave a lot room for improvements. It's clear we will not see a hydraulic disc brake from stock in this price class, but the JAK mechanical disc…

    Value for moneyRated 4.0 on a scale of 1 to 5
    Component qualityRated 3.0 on a scale of 1 to 5
  • M
    Verified Reviewer
    I do not recommend this product
    Age Range 35 - 44
    How often you ride Regularly
    Reasons you ride Fun, Commuting, Fitness, Health, Outdoors
    Rated 2 out of 5 stars
    11 months ago
    It was great while it lasted. Unfortunately build quality of some components are lacking.

    I have had this bike for a year now and for the most part, I absolutely love it. The gearing isn't great for fat tyres (smaller 32t chain ring and 34t freehweel fixes this), . Unfortunately I'm on my second set of forks and they failed hard on the weekend.

    The first forks arrived with a rusty steer tube (inner and outer), so REID provided great service and sent me a new set as soon as they could. They were slightly different looking, but the same colour and the right size...

    I feel like I'm too old to recklessly jump a bike, but I do like to take this out to the local bush (often to take doggo for a walk).. I lifted the wheel slightly to get over a log and the fork taco'd. There were no signs leading up to that point that the fork was compromised, it just folded. 2 days later I'm sitting here feeling I have just been hit by a truck, missing my bike. This failure destroyed my brand new quad lock phone mount that I was trying out (phones good), and my hub axel, bearings and QR skewer.

    This bike might be alright for a beach cruiser, but I can't in good faith recommend it for light trail riding unless you replace the fork with something a bit more substantial (I'm going chromoly).

    Value for moneyRated 3.0 on a scale of 1 to 5
    Component qualityRated 2.0 on a scale of 1 to 5
    RC Profile picture for Reid Cycles
    Reid Cycles
    10 months ago

    Hi Mick,

    Unfortunately, it is evident from the photos that you made some home conversion to make this bike electric. This violates our warranty policy, and likely contributed to this accident.

    I'm really sorry to hear you came off your bike. If you would like some assistance sourcing spare parts we'll be more than happy to help. Please feel free to email us at

  • J
    I do not recommend this product
    Rated 1 out of 5 stars
    18 minutes ago
    1 Star

    chain guide does not work with bike, chain de rails every time you put it into first gear, tried to contact reid and got no communication back!

    RC Profile picture for Reid Cycles
    Reid Cycles
    3 minutes ago
    Hi Jordan! I looked through our emails and saw that we received an email from yourself on the 20th of September, and we sent a reply on the same day, a few hours later! Have you checked your spam folder? My coworker was suggesting looking at the limit screws on the rear derailleur, as if these aren't set properly, the derailleur can be on too extreme an angle and come off! You can also try adjusting the chain guide. Let us know if you need any further assistance :)
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