1963 Triumph 3TA Twenty One


• Evidently the recipient of a high-quality restoration
• Cosmetically flawless and runs beautifully
• MoT until August, 2022

The Background

Every so often, some bright spark wonders why motorcycles can’t be more civilised. There then follows an attempt to civilise the motorcycle, which usually ends in failure. 

Remember the unloved BMW C1? Prior to that, other efforts included the Velocette LE and the Ariel  Leader. These bikes featured fully enclosed frames with windscreens and leg guards, the idea being that the rider would appreciate the extra weather protection and enjoy not having to think about the oily parts. Unfortunately, the bikes’ performance was affected by the weight of all the extra metal and, really, anyone who wanted something more refined than a motorcycle could always buy a microcar.

Triumph, thank heaven, got it right. When the Twenty One was introduced in 1957, it didn’t look all that unlike Triumph’s other handsome offerings, and with a 349cc twin, it was never going to be slow. Like all the best Triumphs of the ’30s to the ’50s, the design was the work of Edward Turner. It had occurred to Triumph that no matter how attractive leg guards and windscreens might seem on paper, the reality is that if you’re riding in the rain, you’re still going to get soaked. 

It therefore took weather protection only as far as good sense permitted, and presented a bike which was immediately identifiable by its enveloping front mudguard and rear ‘bathtub’ fairing, plus the enclosed nacelle which gave the electrics a bit of extra protection. The Twenty One did not make any pretence to protect you from the worst weather, but it did make a difference when riding on wet roads and was still light enough to perform most agreeably.

Interestingly, the Twenty One name has been the subject of some dispute; enthusiasts still debate whether it denoted the 21st anniversary of the Triumph Engineering Co. Ltd. or the 21 cubic-inch engine size, to which reference would have been made in the American market.

The History

Sadly, there is little history with this Norwich-registered bike, and we only know that it was bought by the vendor from Classic Motorcycles Ltd. of Northwich, Cheshire, in June, 2015. 

It was the starting point for the vendor’s small collection of classic motorcycles, all of which he kept in concours condition. Its condition testifies that it has evidently been the recipient of a high-quality restoration at some point in the recent past. It is with some regret that he has taken the decision to sell his collection, although not too much as the reason is to make room for a Jaguar XK120.

The Paperwork

Besides the V5, the Twenty One comes with its sales invoice from Classic Motorcycles Ltd., a current MoT plus certificates from 2015 to 2017, a SORN certificate from 2015 and a Footman James valuation certificate of £4700.

The Condition

There are no two ways about it – this Twenty One is presented in the most fantastic condition in every possible respect. We could not find a single fault in the soft metallic gold paint, and the seat appears to have been upholstered relatively recently and presents flawlessly. Though there is not as much chrome on this bike as on some others, what there is superb and shows no signs of deterioration. Only the ‘Triumph’ tank badges show some signs of age, but it is only very light and would be more appropriately termed ‘patina’ rather than ‘wear’.

The wheels are absolutely superb, and all in all this bike could almost have been driven straight off the showroom floor. Unfortunately, we did encounter a crack in the rear light lens without which we would not hesitate to call the bike perfect.

The Mechanics

From what we have seen of this bike, its outstanding mechanical condition is a fitting reflection of its equally wonderful cosmetic state. It ticks over with a strong and steady idle, suggesting that it has all been kept in the best mechanical health. The engine is remarkably clean, unspoilt by unsightly oil drips or anything else that might be a cause for concern, and the front brake drum could serve a dual purpose as a mirror. Usually, we’re satisfied with brakes as long as they’re capable of bringing the bike to a stop, but if you can eat your dinner off them, so much the better.

We would draw particular attention to the gorgeous chrome exhaust pipes, which are typically prone to discoloration the more the bike is run. Bidders will note that the bike has 66,000 miles on the clock, and yet the pipes look as good as the day they were first chromed.

The fact that the bike has very recently passed an MoT with no advisory notes tell us that is a safe machine to ride, in addition to its many other positive attributes.

The Appeal

The 1950s gave rise to some of the very best-looking motorcycles in history, and the Triumph Twenty One reflects that. While it may not have passed into motorcycling lore in quite the same way as the likes of the Thunderbird, Tiger and Bonneville, because it was not built expressly with performance in mind, it was nevertheless a very good-looking and capable offering offering from the more niche field of ‘weatherproof’ motorcycles and it succeeded at what it set out to do.

Although it attracted the tongue-in-cheek ‘bathtub’ nickname in period, we think the enveloping metalwork has aged wonderfully. Though its purpose may have been weather-protection, its smooth contours are suggestive of streamlining and give it something of a Modernist touch. The Twenty One must be one of the most underrated classic motorcycles, in addition to being one of the most usable.

Notice to bidders

Although every care is taken to ensure this listing is as factual and transparent as possible, all details within the listing are subject to the information provided to us by the seller. Car & Classic does not take responsibility for any information missing from the listing. Please ensure you are satisfied with the vehicle description and all information provided before placing a bid.

As is normal for most auctions, this vehicle is sold as seen, and therefore the Sale of Goods Act 1979 does not apply. All bids are legally binding once placed. Any winning bidder who withdraws from a sale, is subject to our bidders fee charge. Please see our FAQs and T&C's for further information. Viewings of vehicles are encouraged, but entirely at the seller's discretion.

Please see our FAQ's here and our Terms & Conditions here

Vehicle specification
  • Year 1963
  • Make Triumph
  • Model 3TA Twenty One
  • Colour Gold
  • Odometer 66,770 Miles
  • Engine size 349
  • Location Hampshire
  • Country United Kingdom
Bidding history
26 bids
  • Co•••• £5,100 22/09/21
  • Ha•••• £5,000 22/09/21
  • Ha•••• £4,900 22/09/21
  • Co•••• £4,800 22/09/21
  • Ha•••• £4,700 22/09/21
  • Co•••• £4,600 22/09/21
  • Ha•••• £4,500 22/09/21
  • Co•••• £4,400 22/09/21
  • Ha•••• £4,300 22/09/21
  • Co•••• £4,200 22/09/21

The Gallery

Making a secure purchase on Car & Classic Auctions

About Max Bids

The max bid process allows you to bid without any hassle.
Enter your maximum bid and we will then bid on your behalf to ensure you're the highest bidder - just enough to keep you in the lead and only up until your maximum.


C&C prevent auction snipers from bidding in the last seconds to win an auction.
Auctions are extended by 5-minutes if anyone bids within the last 2 minutes to allow other bidders to react and counter-bid.

Auto-bidding increments

If your maximum bid is below the reserve price you'll bid that amount if you are the highest bidder.

If your maximum bid is above the reserve and you are the highest bidder - we will only auto-bid for you up to the reserve price.

Once the reserve has been met, C&C will make sure you are the highest bidder using the bidding increments stated below, keeping you in the lead up until your maximum bid OR up until just below your maximum bid when the increment value would have taken you higher than your maximum bid.

Once the reserve has been met C&C will make sure you are the highest bidder using only the bidding increments stated below, keeping you in the lead up until your maximum bid OR up to the next increment closest to your maximum bid if your maximum bid isn't enough for the increment value.

Bid Amount Increment
£0 to £10,000 £100.00
£10,000 to £50,000 £250.00
£50,000+ £500.00

Automatically outbid immediately

When you place a max bid and are outbid immediately that means that another bidder has placed a max bid limit which is higher than yours.
You can bid again and we will use our automatic bid system to try and get you as the highest bidder.

Matching max bids

When there are two max bids of the same value, the one placed first remains the lead bidder.

Watch this auction

Get notified when the auction is starting, and half an hour before it ends.