1970 Clymer Münch 1,177cc TTS 'Mammoth' Frame no. 114 Engine no. 114

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

Lot 261
1970 Clymer Münch 1,177cc TTS 'Mammoth'
Registration no. SVR 562H Frame no. 114 Engine no. 114

Sold for £ 154,940 (US$ 186,415) inc. premium
1970 Clymer Münch 1,177cc TTS 'Mammoth'
Registration no. SVR 562H
Frame no. 114
Engine no. 114
• Ultra-rare limited edition superbike
• Sold new in the USA
• Restored to the highest standards

In 1965 Freidl Münch, formerly with the Horex racing department, was approached by wealthy French ex-sidecar racer Jean Murit with a simple brief: build a no-expense-spared 'superbike', though the latter term had yet to be coined. Münch found his ideal engine in the form of the air-cooled overhead-camshaft four powering the recently introduced NSU Prinz car. For Murit's machine he used the 1,000cc TT sports version of this engine which, tuned for 60bhp, proved capable of propelling the bulky Mammoth to a top speed of 120mph. Nothing too remarkable there you might think, but while several contemporary production motorcycles could achieve a similar maximum, it was the Mammoth's ability to accelerate powerfully from 20mph in top gear and cruise all day at 110mph that set it apart from the herd.

The engine was housed in a cradle frame inspired by the Manx Norton, and to keep the weight down Münch made extensive use of Elektron magnesium alloy, which was used for the gearbox shell, rear chain case, fork sliders, and brakes. The result was a commendably low dry weight for the prototype of 433lbs, though production versions would weigh considerably more. Elephant Rally founder and Das Motorrad journalist Ernst Leverkus rode the bike in 1966, and the resulting worldwide publicity provoked a rush of orders. The production Mammoth (the name would later be dropped for copyright reasons) first appeared at the Cologne Show in September 1966, by which time the capacity had risen to 1,085cc, power to 70bhp and the top speed close on 140mph. Hand built to individual customer order, the Mammoth eventually used the 1,177cc version of the NSU four with power outputs of up to 104bhp.

Founder of Cycle magazine and publisher of the eponymous motorcycle manuals, American entrepreneur Floyd Clymer (1895-1970) invested in Münch, marketing the machine in the USA as the 'Clymer-Münch Mammoth' with the slogan: 'Built up to a standard, not down to a price'. And the hand-built Mammoth was certainly very expensive, selling in the USA for $3,995 when the BMW R69S cost only $1,695. It is estimated that some 500 Mammoths had been made when production ceased in 1975.

The machine offered here was built for the American market and exported new to New Jersey. Miklos bought this Mammoth in November 2014 from Fuchs Motorrad of Osnabrück, Germany.
Fuchs' letter on file states that it is one of 150 built as a 'Clymer-Münch' before Clymer's death. This letter also states that the machine had been completely restored using only original parts, was 'like a new one' and has 'the highest quality standards'. Additional documentation consists of a copy of the previous German registration document, HMR&C correspondence, SORN paperwork, V5C Registration Certificates, sundry servicing and parts bills, and two MoTs (most recent expires 6th November 2018).


  • 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.
1970 Clymer Münch 1,177cc TTS 'Mammoth' Frame no. 114 Engine no. 114
1970 Clymer Münch 1,177cc TTS 'Mammoth' Frame no. 114 Engine no. 114
1970 Clymer Münch 1,177cc TTS 'Mammoth' Frame no. 114 Engine no. 114
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


If you have any complaints or questions about the Conditions of Sale, please contact your nearest customer services team.

Buyers' Premium and Charges

For Motorcycles (Lots 201 - 539) a 15% Buyer's Premium is payable on the first £500,000 of the final Hammer Price of each Lot, and 12% on any amount by which the Hammer Price exceeds £500,000, VAT at the standard rate is payable on the Premium by all Buyers, unless otherwise stated.

Buyers Premium on all Automobilia lots (Lots 1 - 196) will adhere to Bonhams group policy, 25% up to £175,000 of hammer price, 20% from £175,001 to £3,000,000 of hammer price, and 12.5% on the balance thereafter. This applies to each lot purchased and is subject to VAT. Some lots may be subject to VAT on the hammer price. These lots will be clearly marked with a dagger (†) printed beside the lot number in the catalogue.

Collection Notices

Motorcycle Spares and Memorabilia Clearance
All purchased Spares and Memorabilia lots must be cleared from the sale venue by 7pm Sunday 22 April. All un-collected purchased lots shall then be removed to Bonhams Kidlington storage facility at the buyer's expense (Please see the Collections Page of the Conditions of Sale for further information).

Lots will be available for collection from 10am Thursday 26 April 2018 by appointment only. To arrange collection please contact the Motorcycle Department +44 (0) 20 8963 2817 or [email protected] to make an appointment.

Motorcycle Spares and Memorabilia Shipping Enquiries:
For all motorcycle spares & memorabilia shipping enquiries please contact Alban Shipping quoting your client, sale & lot number to discuss your shipping requirements:
Tel:+44 (0) 1582 493099
email: [email protected]

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

Payment Notices

For payment information please refer to the sale catalogue.

Shipping Notices

For information and estimates on domestic and international shipping as well as export licences please contact Bonhams Shipping Department.