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Auction archive: Lot number 494*

Property of Pete Gagan 1914 Zenith-JAP 8hp 'Gradua' Twin Registration no. LO 3560 Frame no. 4499 Engine no. 46612

The Spring Stafford Sale
27 Apr 2019 - 28 Apr 2019
Estimate
£16,000 - £20,000
ca. US$20,664 - US$25,831
Price realised:
£28,175
ca. US$36,389
Auction archive: Lot number 494*

Property of Pete Gagan 1914 Zenith-JAP 8hp 'Gradua' Twin Registration no. LO 3560 Frame no. 4499 Engine no. 46612

The Spring Stafford Sale
27 Apr 2019 - 28 Apr 2019
Estimate
£16,000 - £20,000
ca. US$20,664 - US$25,831
Price realised:
£28,175
ca. US$36,389
Beschreibung:

• Rare Pioneer-era v-twin • Equipped with the Zenith Gradua transmission • Present ownership since 1997 Zenith motorcycles were manufactured from 1904 until 1950, in a variety of factories in or around London. From the early days proprietary engines were used, such as Fafnir, Precision, JAP, Bradshaw, and Villiers. The driving force behind Zenith was Chief Engineer, and company owner, Frederick Barnes, who was responsible for the famous 'Gradua' gear. Worked by a hand-wheel or crank handle, the Gradua mechanism varied the diameter of the engine pulley while simultaneously sliding the rear wheel back and forth in the fork slots, thus maintaining correct belt tension. Its advantages showed most effectively in speed hill climbs, and in pre-WWI days Zenith machines gained many successes as the Zenith rider could change gear during the ascent while the other competitors had to make do with a single choice of ratio. Rival riders and manufacturers thought that this was an unfair advantage, so many leading clubs excluded Zeniths from their hill climbs. Zenith was quick to recognise the publicity value and took the word 'Barred' as their trademark. Although the expensive Gradua system gave way to a more conventional Sturmey-Archer countershaft gearbox in the 1920s, Zenith continued to pursue its racing and record-breaking activities with enthusiasm. Fred Barnes himself enjoyed considerable success at Brooklands, where in 1922 Zenith rider Bert Le Vack became the first man to lap at over 100mph on a motorcycle – in the rain. In 1928 a Zenith-JAP ridden by Oliver Baldwin established a world motorcycle speed record of 124.62mph at Arpajon in France, while Joe Wright later raised the record to 150.736mph using his supercharged Zenith-JAP 'reserve bike', his favoured OEC having succumbed to mechanical problems. Significantly, when Wright's record was set, in 1930, the company was temporarily out of business. Despite adding a Villiers-powered economy model to the range, Zenith failed to weather the financial storms of the early '30s. After a succession of closures and changes of ownership it re-emerged after WW2 with a solitary model: a 750cc JAP-powered sidevalve v-twin, which lasted only a few more years. Dating from 1914, this magnificent Zenith 'Gradua' is powered by a sidevalve JAP v-twin engine of 976cc displacement, rated at 8hp. The accompanying (copy) old-style logbook (issued 1959) records this Zenith's date of original registration as 7th April 1921, this being shortly after the introduction of the Roads Act of 1920, which required local councils to register all vehicles at the time of licensing and to allocate a separate number to each. (Many vehicles, although in existence for several years in some cases, were only registered for the first time after the Act's passing). The first owner listed therein is Comerfords Ltd, the well-known Surrey-based motorcycle dealership, while the only other owner listed is one Robert Winter of Surbiton, Surrey (change undated), from whom the Zenith was purchased by VMCC and Sunbeam MCC stalwart, Geoff Morris, circa 1978. A letter on file from Ken Blake states that this 1914 model was one of three Zeniths purchased in 1957 by the Comerfords motorcycle dealership of Thames Ditton from former Brooklands racing driver and proprietor of Ambassador Motor Cycles, Kaye Don. The three Zeniths were collected from Ambassador Motor Cycles' 'Pontiac works, and Ken Blake then proceeded to restore the two Veteran machines over the course of the next couple of years. Comerfords' sales director Bert Thorn then rode this one on the 1959 London-Brighton Run. Also on file is a (copy) Pioneer Certificate (no.76) issued in 1962 to E R 'Bob' Winter of Comerfords Ltd, and a purchase receipt dated 1996 when Geoff Morris sold the machine to Mr Mike Sherwin. Pete Gagan purchased the Zenith from Mike Sherwin in 1997. Born in Ontario, Canada, Pete Gagan was the instigator of what became the Canadian Vintage Motorcycle Group.

Auction archive: Lot number 494*
Auction:
Datum:
27 Apr 2019 - 28 Apr 2019
Auction house:
Bonhams London
Stafford, Staffordshire County Showground Staffordshire County Showground Weston Road Stafford ST18 0BD Tel: +44 207 447 7447 Fax : +44 207 447 7401 info@bonhams.com
Beschreibung:

• Rare Pioneer-era v-twin • Equipped with the Zenith Gradua transmission • Present ownership since 1997 Zenith motorcycles were manufactured from 1904 until 1950, in a variety of factories in or around London. From the early days proprietary engines were used, such as Fafnir, Precision, JAP, Bradshaw, and Villiers. The driving force behind Zenith was Chief Engineer, and company owner, Frederick Barnes, who was responsible for the famous 'Gradua' gear. Worked by a hand-wheel or crank handle, the Gradua mechanism varied the diameter of the engine pulley while simultaneously sliding the rear wheel back and forth in the fork slots, thus maintaining correct belt tension. Its advantages showed most effectively in speed hill climbs, and in pre-WWI days Zenith machines gained many successes as the Zenith rider could change gear during the ascent while the other competitors had to make do with a single choice of ratio. Rival riders and manufacturers thought that this was an unfair advantage, so many leading clubs excluded Zeniths from their hill climbs. Zenith was quick to recognise the publicity value and took the word 'Barred' as their trademark. Although the expensive Gradua system gave way to a more conventional Sturmey-Archer countershaft gearbox in the 1920s, Zenith continued to pursue its racing and record-breaking activities with enthusiasm. Fred Barnes himself enjoyed considerable success at Brooklands, where in 1922 Zenith rider Bert Le Vack became the first man to lap at over 100mph on a motorcycle – in the rain. In 1928 a Zenith-JAP ridden by Oliver Baldwin established a world motorcycle speed record of 124.62mph at Arpajon in France, while Joe Wright later raised the record to 150.736mph using his supercharged Zenith-JAP 'reserve bike', his favoured OEC having succumbed to mechanical problems. Significantly, when Wright's record was set, in 1930, the company was temporarily out of business. Despite adding a Villiers-powered economy model to the range, Zenith failed to weather the financial storms of the early '30s. After a succession of closures and changes of ownership it re-emerged after WW2 with a solitary model: a 750cc JAP-powered sidevalve v-twin, which lasted only a few more years. Dating from 1914, this magnificent Zenith 'Gradua' is powered by a sidevalve JAP v-twin engine of 976cc displacement, rated at 8hp. The accompanying (copy) old-style logbook (issued 1959) records this Zenith's date of original registration as 7th April 1921, this being shortly after the introduction of the Roads Act of 1920, which required local councils to register all vehicles at the time of licensing and to allocate a separate number to each. (Many vehicles, although in existence for several years in some cases, were only registered for the first time after the Act's passing). The first owner listed therein is Comerfords Ltd, the well-known Surrey-based motorcycle dealership, while the only other owner listed is one Robert Winter of Surbiton, Surrey (change undated), from whom the Zenith was purchased by VMCC and Sunbeam MCC stalwart, Geoff Morris, circa 1978. A letter on file from Ken Blake states that this 1914 model was one of three Zeniths purchased in 1957 by the Comerfords motorcycle dealership of Thames Ditton from former Brooklands racing driver and proprietor of Ambassador Motor Cycles, Kaye Don. The three Zeniths were collected from Ambassador Motor Cycles' 'Pontiac works, and Ken Blake then proceeded to restore the two Veteran machines over the course of the next couple of years. Comerfords' sales director Bert Thorn then rode this one on the 1959 London-Brighton Run. Also on file is a (copy) Pioneer Certificate (no.76) issued in 1962 to E R 'Bob' Winter of Comerfords Ltd, and a purchase receipt dated 1996 when Geoff Morris sold the machine to Mr Mike Sherwin. Pete Gagan purchased the Zenith from Mike Sherwin in 1997. Born in Ontario, Canada, Pete Gagan was the instigator of what became the Canadian Vintage Motorcycle Group.

Auction archive: Lot number 494*
Auction:
Datum:
27 Apr 2019 - 28 Apr 2019
Auction house:
Bonhams London
Stafford, Staffordshire County Showground Staffordshire County Showground Weston Road Stafford ST18 0BD Tel: +44 207 447 7447 Fax : +44 207 447 7401 info@bonhams.com
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