SKU: 71824246749
singlespeed fitnessbike

singlespeed fitnessbike Six Single Speed Bike – Vitus Bikes

$18.68 $20.75
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Ships within 48 hours · Estimated delivery Aug 18 - Aug 23

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Description

singlespeed fitnessbike Six Single Speed Bike – Vitus BikesA versatile track bike to hammer the velodrome planks or take on the frenzied urban race scene. If you dont fancy that then fit the supplied brakes and take on the urban jungle. Inspired by Six Day racing and the Red Hook crit series, the Six is built to race. The frame is constructed from double butted 6061 T6 aluminium tubes, and all aluminium fork with tapered steerer and 45mm rake. Reinforced dropouts and built in chain tugs keep the rear wheel

A versatile track bike to hammer the velodrome planks or take on the frenzied urban race scene. If you don’t fancy that then fit the supplied brakes and take on the urban jungle. 

Inspired by Six Day racing and the Red Hook crit series, the Six is built to race. The frame is constructed from double butted 6061 T6 aluminium tubes, and all aluminium fork with tapered steerer and 45mm rake. Reinforced dropouts and built in chain tug’s keep the rear wheel supported in the most demanding situations.  

Track inspired geometry – tight and fast, with a raised BB giving the perfect blend of stability, and the ability to react quickly with confidence in tight situations.  

Sleek internal rear brake cable routing, with supplied blanking plates to cover the holes if you are brake-less, give the Six a clean look and maximise aerodynamics. The Six comes fitted as standard with both front and rear brakes with cross-top levers. 

The wheels are true all-rounders, featuring 43mm deep track rims, with added machined braking surface and flip-flop hub so you can choose to ride fixed single-speed or with a freewheel. 

Built to go all out whatever your surface. 

 

Features:

Inspired by Six Day Racing & Red Hook Crit

Track Inspired Geometry

Frame Material

6061-T6 Aluminium

Wheel Size

700c

Groupset

Singlespeed

Weight

Medium: 8.3kg

Specifications

FRAMESix 6061-T6 Double Butted

Internal rear brake cable routing, BSA Threaded BB Shell, QR

REAR HUB Vitus KT Flip Flop with 17T Freewheel

DPLF Cr-Mo 140 Hollow Axle, M10x120X165mm, 1.37" x 14T Freewheel

FORKSAluminium

1 1/8" - 1 1/2" Tapered steerer, QR
SPOKESVitus

N/a

CHAINSETSRAM Omnium

24mm Axle, 48T, Crank Lengths - XS:165mm S:165mm M:170mm L:170mm XL:170mm

FRONT TYREContinental Ultrasport II 700c x 25

Wire Bead

BOTTOM BRACKETSRAM GXP

68mm Road

REAR TYREContinental Ultrasport II 700c x 25

Wire Bead

FRONT DERAILLEURSingle Speed

N/A

FRONT BRAKETektro

R540 Dual Pivot Caliper

REAR DERAILLEURSingle Speed

N/A

REAR BRAKETektro

R540 Dual Pivot Caliper

FRONT SHIFTERTektro

RL721
HANDLEBARSVITUS Aero

6061 Aluminium, 31.8mm, XS:400mm S:400mm M:420mm L:420mm XL:440mm
REAR SHIFTERTektro

RL721
STEMVITUS 6061 Aluminium

3D Forged, bar bore 31.8mm, +/- 7 degrees, XS:100mm S:100mm M:110mm L:110mm XL:120mm

CASSETTEKT 14t Freewheel

N/A
HEADSETACROS Aix-322 R3 Flat

Tapered 1 1/8"- 1 1/2", upper bearing 41.8 / 28.6, lower bearing 52 / 40
CHAINKMC S1

Single Speed 1/2" x 1/8"
GRIPSVITUS

EVA Cork
FRONT RIMVitus

Anodised braking surface (note: black colour on braking surface will wear with use if using brakes)
SADDLEVitus

Black
REAR RIMVitus

Anodised braking surface (note: black colour on braking surface will wear with use if using brakes)
SEATPOSTVITUS 6061 Aluminium

27.2mm x 350mm, 12mm layback
FRONT HUBVitus KT

DPLF Cr-Mo 140 Hollow Axle, M9x100X140mm
SEATCLAMPVITUS

31.8mm
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 71824246749

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4.7 ★★★★★
Based on 8 reviews
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Product Reviews
W
Verified Purchase
Wes B.
New York, US
★★★★★ 5
Fantastic!
Color: Light Grey, Size: Pack of 1, Color: Light Grey, Size: Pack of 1
Outstanding quality and incredibly easy to assemble! The back support is a perfect 10/10. I was debating between the M57 and the B100, and the B100 definitely won me over. The materials feel premium and durable. Highly recommended!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 4, 2026
D
Verified Purchase
Dre
Lexington, US
★★★★★ 5
Comfortable. Great Value for money. Easy to assemble. Great customer service.
Color: Black, Size: Pack of 1, Color: Black, Size: Pack of 1
I've been looking for a new chair to replace a cheap $30 chair i bought off of Amazon last year that had been killing my back and shoulders. I wanted something in the $150-$200 range and settled on the M18. Shipping was a fast 3 days with Prime and the box arrived in great condition. All parts were separately wrapped or in their own boxes. Came with all hardware and nothing was missing. Assembly took me a little longer then normal because i have rotator cuff injury in my left shoulder so that arm is mostly useless. The most difficult part for me was attaching the wheels to the base. Other then that it was simple. Once the chair was assembled i sat in it for the first time and started making my adjustments with the recline feature, armrest level along with the headrest. Next i reached around for the lumbar support knob and tried to adjust it but with my bad shoulder i decided to just get out of the seat and turn it around and adjust it with both hands. After spinning the chair a round to get at the lumbar knob i noticed a large crack in the plastic in the middle of the back of the lumbar plastic piece. I had not made any lumbar adjustments yet so i assumed this is how i received it. The lumbar support comes preinstalled to the backrest so it either was damaged before or during the shipping process. Either way it was damaged before being delivered to me. The lumbar support still functioned properly but it was still broken. I decided to contact Sihoo's customer support that came along with the installation instructions regarding the damaged lumbar piece. I received a reply the next day and after sending them some more info about my order and a couple pics they shipped me a replacement part which took a week to arrive. I swapped out the damaged part and after owning the chair for a week so far i am really happy with my purchase. Im about 5'10 180lbs. At its highest height level my feet reach the ground comfortably flat footed. The backrest fully covers my back and the headrest adjusts very well to sit on the back of my lower head/upper neck. The armrests only go up and down....not forward and back or tilt inwards. This is fine for me as they are grooved to fit your forearm while sitting at your desk/keyboard. The armrests are also a soft cushioned rubber material...not a hard plastic. The mesh of the backrest and headrest are good material and seem well made. The seat is very wide and the cushioning is firm which i prefer. Usually more firm cushioning seems to last longer and hold its form. The base of the chair is VERY sturdy and made of all metal. My chair is on carpet and holds its position very well. As far as recline goes you can set it to recline all the way back, half way or lock the chair in the upright position. You can also adjust the resistance on the reclining feature. So that being said im very happy with my purchase. It arrived with a slight flaw which the company corrected in a fast manor and was very polite in their customer support. I personally don't have a lot of experience with many office chairs and have never used a high end chair($500-$1000+) chair before to make any comparisons. All my chairs for the most part have been from local stores like Staples or Office Depot. Id recommend this over anything they carry in this price range....and i went and looked at their products before buying this chair as well.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 1, 2023
H
Verified Purchase
Hamza Yahya
Houston, US
★★★★★ 5
SIHOO M18 chair is amazing
Color: Black, Size: Pack of 1
I purchased the SIHOO M18 Ergonomic Chair a few years ago and have really enjoyed it. It’s very comfortable and offers multiple adjustments, whether you want to recline and relax or sit upright for work. The back support is also excellent, and I haven’t had any issues with the chair at all. You can easily tell it’s high quality from the build and appearance—no creaks or noises whatsoever. I highly recommend this chair to anyone in the market for a new office chair.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 12, 2026
M
Verified Purchase
Megan R Wesby
Bozeman, US
★★★★★ 4
Good budget-friendly option
Color: Black, Size: Pack of 1, Color: Black, Size: Pack of 1
The chair arrived 4 days early and was easy to put together by following the instructions carefully. It feels sturdy and comfortable. It does support the lumbar region of the back and the arm rests are adjustable vertically as well as the head rest. I wish the arm rests were able to rotate in and out for added customization and that the back of the chair could be adjusted up and down for more precise support. But for a budget chair, it does a good job.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 4, 2026
F
Verified Purchase
farmhousewife
Boise, US
★★★★★ 5
A solid chair for the budget conscious sitter.
Color: Black, Size: Pack of 1
While this is not THE most comfortable chair, let's face it - if you sit for long periods, what chair IS? I bought this chair because I'm making a career change. I've returned to school and spend hours at my desk. At the age of 50, sitting for a long time with my nose pointed toward a book can be hard on the seat, back and neck. I looked at all kinds of office chairs and settled on this one, primarily because it was on sale, was in my budget and so I clicked the "Add to cart" button and hoped for the best. It was delivered, and I had to work that evening, and when I got home my 17-year-old son had assembled it. My theory on the simplicity of assembly can be deduced from that sentence above. He didn't have any extra parts left over and the chair was complete! I sat down. I leaned back. I shifted the lever that keeps the chair in an upright position and sat straight up. Okay! I can live with this. It has been almost two full months of using this chair and I have no problems. Pros: easy to assemble sufficient comfort level - adequate cushion in the seat can be leaned back or pop the lever in to stay straight up rollers on bottom headrest is adjustable affordable easy to clean arm-rests can be moved up or down height adjustment is self-explanatory - you'll figure it out the "lumbar" support is actually comfortable - it's "there" if you back up to it but if you scoot forward just a bit, you won't feel it if you don't want to sit like that Overall this seems like a chair that's going to last me for a few years, at least, and not fall apart. In the context of size, I'm not a small or extra larger person. I'm an average middle-aged woman with meat on the bones. The seat is plenty big enough. I would recommend this chair as an upgrade to the hand-me-down office chair that just isn't comfortable any longer.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 1, 2023

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