1971 Kawasaki H1 Mach III 500


  • Beautiful restored H1 in great condition 
  • Revered superbike with the brutal soundtrack
  • Recent health check, new battery and carb clean 
  • Matching numbers bike recently imported to UK
  • Certificate of proof of manufacture from Triple Club UK

The Appeal

It’s the early 70s and you’re standing on a street corner. In the distance you can hear what sounds like an incoming bombing raid. You’re a little alarmed. Suddenly, hoving into view, is a motorbike, its chromework glittering. The handlebars are twitching as the rider wheelies wildly down the road. 
You’ve just seen Kawasaki’s H1 Mach III 500. Even the US importer nicknamed it the widowmaker. And with good reason. Kawasaki set out to create the fastest and quickest accelerating bike ever built. It succeeded, albeit at the cost of a few visually dramatic wheelies. That was due to the heavily rearward-biased weight distribution. 
The H1 didn’t quite have the handling to match the performance, but it hardly mattered. It sounded amazing, it went like stink and it looked great. 
All characteristics we are helpfully reminded of by this beautiful ‘71. Recently imported to the UK, it looks as if it just rolled off the line in October ‘71. A matching numbers bike - details are verified by the Kawasaki Triples Club GB - with recent fettling by specialists, it runs and rides as good as it looks.
Few bikes were as exciting as the H1. And this is a great example. 


History and Paperwork

  • First registered 1971
  • Kawasaki Triples Club GB certificate of proof of manufacture
  • This is dated January 2022 and shows matching numbers and built October 1971 
  • Frame and engine number KAE 57019 
  • HMRC importation paperwork dated 2022
  • One UK owner since first UK registration 
  • First registered here in March 2021 
  • Various invoices for recommissioning work in June and July 2021
  • Repairs, new battery and carburettors checked in March 2024
  • Factory H Series bike handbook 
  • Registered as a Historic Vehicle so MOT, tax and ULEZ exempt 


The Condition

  • Stand-out bright red paintwork in factory correct finish 
  • Original decals in good condition 
  • Bright chromework across various trim items
  • Clear and clean factory correct dials 


The Mechanics

  • 499cc 58bhp ‘3 across’ triple 
  • 5spd manual chain drive gearbox 
  • Recent maintenance work since arriving in the UK 
  • No reported running or riding issues 
  • Frame No. KAF-52740
  • Engine No. KAE-57019 
  • Runs and rides. 
  • Comes with workshop manual and dating certificate along with various invoices and other history.
  • Imported in 2020 and lots of work done including rebuilt crankshaft, re-bore, new pistons, rebuilt carbs, new cables and coated tank and panels. 
  • Reg. PGF 436K. 
  • V5 and key. 


This sale is subject to the Car & Classic Terms and Conditions. By bidding and/or making an offer, you also agree to the following:
The seller of this vehicle is registered as a business seller. And you are covered by Car & Classic’s Terms and Conditions.
We request that a non-refundable fee be paid if you are the lucky winning bidder at auction or if your offer is accepted. Please refer to our helpful FAQs and T&Cs for specific rates.
This vehicle is “Sold As Seen”, on an “As Is Where Is’ basis and without warranty. Photos and descriptions are solely for guidance purposes and it's customary to carry out a full inspection of the vehicle prior to purchase for your own peace of mind.
✓ VAT is included in the buyer's deposit. VAT may or may not be included in the final bid or offer price, as specified in the listing.
We want a smooth transaction just as much as you do and as such we run all UK-registered cars and motorbikes for sale on Car & Classic through an online HPI check to verify that they show no insurance database markers for damage or theft, and have no finance owing, allowing you to bid with confidence.
✓ We also  check whether vehicles are recorded as being written off as part of an insurance total loss claim at the time an advert is placed and we helpfully provide write-off category labels (Cat C/D/S/N) for your assistance, the presence or absence of a label does not guarantee the vehicle’s status and  it's always worthwhile carrying out your own full vehicle history check before making an offer.
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Auction FAQs
Auction Details
  • Year 1971
  • Make Kawasaki
  • Model H1
  • Colour Red
  • Mileage 19,509 Miles
  • Engine size 500
  • Seller Type Trade
  • Town Malvern
  • County Hertfordshire
  • Country United Kingdom
  • Auction ends
Bidding history
21 Bids
  • Ac•••• £6,800 27/06/24
  • ra•••• £6,700 27/06/24
  • Ac•••• £6,600 27/06/24
  • ra•••• £6,500 27/06/24
  • Ac•••• £6,400 27/06/24
  • ra•••• £6,300 27/06/24
  • Ac•••• £6,200 27/06/24
  • ra•••• £6,100 27/06/24
  • Ac•••• £6,000 27/06/24
  • ra•••• £5,900 27/06/24

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