c.1974 NVT 'Cosworth' Experimental Prototype Frame no. none Engine no. none

This lot has been removed from the website, please contact customer services for more information

Lot 381
c.1974 NVT 'Cosworth' Experimental Prototype
Registration no. not registered Frame no. none Engine no. none

Sold for £ 6,900 (US$ 9,526) inc. premium
c.1974 NVT 'Cosworth' Experimental Prototype
Registration no. not registered
Frame no. none
Engine no. none
The urgent need to replace its ageing Commando twin with something more modern for both road and track prompted NVT to commission a new engine design from Cosworth Engineering, applicable to both a production roadster and a race-bike. First shown in 1975, the Challenge water-cooled unitary construction twin borrowed heavily from Cosworth's 3.0-litre DFV V8 Formula 1 engine, yet despite a claimed maximum power output of 115-120bhp, the racer's handful of outings were disappointing, rider Dave Croxford being unable to match his old Commando-powered machine's lap times. With NVT on the point of collapse, the project was shelved in 1976.

The Commando-based machine offered here appears to be a test-bed for Cosworth's DOHC four-valves-per-cylinder technology applied to a water-cooled twin-cylinder engine with separate gearbox; as such, it might have been conceived as an update for the Commando engine that would have been cheaper than tooling up for the all-new Challenge. Interestingly, the machine is marked 'P89' to a plate between the instruments, the Challenge project being coded 'P86'. The right-side primary drive and final drive, using a reversed Norton gearbox, are particularly worthy of note.

Owned by the vendor for over 30 years, the machine was purchased from Stafford-based motorcycle dealer Cyril Chell, who had bought it at NVT's liquidation sale. The machine has not been used since purchase and its mechanical condition is not known.

Footnotes

  • As with all Lots in the Sale, this Lot is sold 'as is/where is' and Bidders must satisfy themselves as to the provenance, condition, age, completeness, and originality prior to bidding.
Contacts
c.1974 NVT 'Cosworth' Experimental Prototype Frame no. none Engine no. none
c.1974 NVT 'Cosworth' Experimental Prototype Frame no. none Engine no. none
c.1974 NVT 'Cosworth' Experimental Prototype Frame no. none Engine no. none
c.1974 NVT 'Cosworth' Experimental Prototype Frame no. none Engine no. none
c.1974 NVT 'Cosworth' Experimental Prototype Frame no. none Engine no. none
Auction information

This auction is now finished. If you are interested in consigning in future auctions, please contact the specialist department. If you have queries about lots purchased in this auction, please contact customer services.

Buyers' Obligations

CONDITIONS OF SALE AND GUIDE FOR BUYERS

Please see the CONDITIONS OF BUSINESS AND GUIDE FOR BUYERS for all pertinent information including bidding, the Buyers Premium and other associated charges payable upon the Hammer Price of each lot, Post-sale collection, transportation and shipping of lots.

Buyers' Premium and Charges

Buyers Premium and Charges

Memorabilia and Spares
For Memorabilia and Spares (Lots 101-238) the Buyers Premium is 27.5% on the first £10,000 of the hammer price; 25% of the hammer price of amounts in excess of £10,000 up to and including £450,000; 20% of the hammer price of amounts in excess of £450,000 up to and including £4,000,000 and 13.9% of the hammer price of any amounts in excess of £4,000,000.

Motorcycles
For Motorcycles (Lots 1-75 & 301- 527) the Buyers Premium will be 15% on the first £500,000 of the Hammer Price of each Lot, and 12% on the balance thereafter.

Buyers attention is drawn to Condition 7 of the Notice to Bidders. VAT at the standard rate is payable on the Premium by all Buyers, unless otherwise stated.

Payment Notices

For payment information please refer to the sale catalog.

Shipping Notices

POST SALE COLLECTION AND SHIPPING INFORMATION

Motorcycle Spares and Memorabilia (Lots 101 to 238)

All purchased lots must be cleared from the sale venue by 7pm Sunday 10 October 2021. All un-collected purchased lots shall then be removed to Bonhams storage facility at:

Bonhams Motorcycles
The Guard House
Bicester Heritage
Buckingham Road
Bicester
Oxon
OX26 5HA

Lots will be available for collection from 10 am Thursday 14 October by appointment only.

To arrange collection please contact the Motorcycle Department 0044 (0) 20 8963 2817 or [email protected] to make an appointment.

For all motorcycle spares & memorabilia shipping enquiries please contact Alban Shipping quoting your client, sale & lot number to discuss your shipping requirements.

Tel: 0044 (0) 1582 493099
Email: [email protected]

Please note Bonhams do not provide shipping neither do Bonhams pack lots. Should you wish to organize collection of your lots via a third party carrier, they must check and pack lots on your behalf upon collection.

Shippers or Agents wishing to collect on behalf of the purchaser must provide written instruction from the client before Bonhams will release the lot(s). All purchases are at the buyers risk from the fall of the hammer.

Storage Notices

POST SALE COLLECTION AND SHIPPING INFORMATION

Motorcycles (Lots 1 to 75 and 301 to 527)
All purchased lots must be cleared from the sale venue by 7pm Sunday 10 October.

Purchases can only be released once full settlement (inclusive of all charges) of all invoices issued to the buyer is received in cleared funds.

Limited collection is available until 11am Monday 11 October, by appointment only, and purchasers must advise Bonhams Motorcycle Department via email no later than 7pm Sunday 10 October if they intend to collect Monday.

Please email [email protected] with your collection or transport instructions as soon as possible following your successful bid.

Failure to instruct Bonhams by the given time will result in your vehicle being uplifted to Moving Motorcycles Northamptonshire store at your expense.

Buyers should satisfy themselves that they have collected all relevant logbooks, documents and keys relating to their Lot(s) at time of collection.

Removal and Storage of Vehicles
All Lots not removed in accordance with the above will be transported to Moving Motorcycles' Northamptonshire storage facility.

Please contact Moving Motorcycles to make arrangements for the collection or delivery of your lot:

Moving Motorcycles
8 Williams Way
Wollaston
Northamptonshire
NN29 7RQ
0044 (0) 1933 448 555
[email protected]
www.movingmotorcycles.co.uk

Lots will be available for collection from Moving Motorcycles from 12 noon Tuesday 12 October, by appointment only.

Vehicle Removal charges to store
£115 plus VAT per motorcycle
£230 plus VAT per motorcycle combination

Storage charges

£10.00 plus VAT per day per motorcycle
£16.00 plus VAT per day per motorcycle combination

Transport and Shipping

Representatives of Moving Motorcycles and Shippio will be at the Sale and can arrange national and international transportation as agent for the Buyer or the Seller (as the case may be).

App