FiftyOne Asssassin 2021

Regular price £2,500.00
Sale price £2,500.00 Regular price £3,000.00
+ £69 for insured shipping
Frame Material : Carbon

Groupset : Shimano GRX

Frame Size : 54

Size : Medium

Condition : Good condition

Location : London

Get any bike on MYNEXTBIKE shipped straight to your door for only £69.

Our shipping partner, AnyVan, will collect the bike from the seller and deliver it straight to you, fully assembled and ready to ride!

Every delivery is insured, and you can return it free of charge if the bike doesn't match the description. We aim to deliver your bike within a few days of the order

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Feeling impatient?

You can collect the bike from the seller yourself. We will reveal the exact location of the seller after you've completed checkout.

If you select 'collection' at checkout, you can also inspect the bike before making a purchase. We will guide you through the checkout process as usual, authorize your payment, but you will not be charged until you confirm that you've left with the bike.

We guarantee to refund your purchase if the bike doesn't match the seller's description, giving you peace of mind!

Simply contact us at, and we will arrange for the bike to be collected from you and returned to the seller.

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Verified Bike Listing

This seller has provided a serial number, or proof of purchase, or both. When serial number are provided, we verify the authenticity of the bikes and check against stolen bike databases. 

About this bike

Seller Description:

FiftyOne Assassin Gravel Bike - Medium FiftyOne is a fantastic custom built frames built in Ireland who recently branched out into Gravel Bikes! Shimano GRX 2x11 Groupset DTSwiss Wheelset (hydraulic discs) Zipp Finishing Kit (Seatpost and Stem) Saddle - WTB Slight wear on front of bike, just above the forks (see photos) - This is from a bike bag from a bikepacking trip - Scratch on fork also pictured from a fork bag Been an incredible bike for adventuring, winter rides and even summer cycle trips! Sadly selling to put towards house! Been a great partner and will be sad to see it leave.





Key Details

Category: Gravel
Year: 2021
Brand: FiftyOne
Model: Asssassin
Size (cm): 54
Frame Material: Carbon
Groupset: Shimano GRX
Drivetrain: 2 x 11
Colour: Green
Condition: Good condition
Proof of Ownership: No
Previous Owners: No

Technical Specifications

Drivetrain: 2 x 11
Groupset: Shimano GRX
Weight: -
Suspension Type: Rigid
Wheel Material: Aluminum
Shifting: Mechanical
Battery: -
Frame Material: Carbon
Fork: 3T Fango LTD
Brake: SRAM Force1 HRD Hydraulic Disc w/ SRAM 160mm Centerlock rotor
Shifters: SRAM Force1 Hydraulic DoubleTap
Front Derailleur: None
Rear Derailleur : SRAM Force1 Long Cage
Crank: SRAM Force1- 44T (S: 170mm - M: 172-5mm - L: 175mm - XL: 175mm)
Tires: Panaracer GravelKing SK 650b-48mm (27.5x1.90")
Rims: 3T DiscusPlus C25 PRO- 650b- 24mm internal width
Cassette: SRAM 11-speed PowerGlide™- 11-42T
Seat Post: -
Handle Bar: 3T Superghiaia TEAM Stealth Carbon (S: 40cm - M: 44cm - L: 44cm - XL: 44cm)
Stem: Apto TEAM Stealth (S: 90mm - M: 100mm - L: 110mm - XL: 110mm)


I’d like to buy this item. How do I proceed?

  1. Click on the blue “Add to cart” button on the listing page, and you’ll be directed to checkout to enter your shipping address and payment details at checkout. You can pay using finance or your preferred payment method.
  2. We will contact the seller to arrange a suitable date to collect the bike. 
  3. Our specialist delivery partner will deliver the bike to you, ready to ride! No assembly is required.

I'd like to negotiate the price, how do I do this?

  1. Click the “Make an offer” button on the listing page.
  2. Enter your contact details and the amount you’d like to offer.
  3. The seller will either accept, decline or make a counteroffer. 
  4. You will receive the outcome via email so keep your eyes peeled!
  5. Once you’ve agreed on the price, you’ll be sent a payment link to complete the purchase. 
  6. Your new bike will be shipped to you!

How can I contact the seller?

If you would like to ask the seller a question about the bike, then please submit your query using the form above. The seller will receive your question by email.

If you have any questions on shipping/collections or returns, then feel free to reach out to us directly.

How long does delivery take, and how much does shipping cost?

We aim to deliver your new bike within 2-3 days of placing an order. Here’s the process:

  1. Once an order is placed, we contact the seller to arrange a suitable date for our delivery partner to collect the bike. 
  2. The bike will then be delivered to you, typically the same day it’s been collected from the seller. 
  3. You’re ready to ride! Our couriers collect and deliver the bikes without the need for them to be disassembled.

Shipping costs are fixed at £69 no matter where you or the seller are living in the U.K.

Can I collect in person?

Yes! You can collect the bike from the seller yourself. We will reveal the exact location of the seller after you've completed checkout.

Can I test ride the bike first?

If you would like to test ride the bike, then please contact us and we will arrange this with the seller. Here’s the process:

  1. We will contact the seller to confirm they’re happy to proceed with this and if so, will arrange a suitable date for the test ride.
  2. We ask you to agree to a price first and complete the checkout process as normal before your “test ride”. 
  3. At checkout please select “collect in person” and enter your payment details. 
  4. Your payment will be authorised but not captured until you’ve confirmed you’ve left with the bike. If you don’t leave with the bike, your payment will not be captured.

How does buyer protection work?

Our Buyer Protection policy is in place to prevent any mis-selling on the platform and ensure you get exactly what you paid for! If the bike arrives “not as described”, such as there is damage that wasn’t disclosed in the listing, or the specifications are wrong, then you can return it to the seller free of charge. Simply contact our support team and we will arrange this for you. To learn more, please read here.