Triumph Trident Bobber – BikeBound


Triumph Trident Bobber

Triumph T300 “Tri-Hen” from Chris Ahead… 

The early Hinckley Triumphs of the Nineteen Nineties are rapidly changing into trendy classics. These “T300” machines introduced the good British marque again from the shadows and spearheaded the model’s many successes straight into the twenty first century. They have been sensible sufficient to over-engineer the brand new Trident, Thunderbird, Adventurer, and different fashions to beat the age-old notion of Triumphs as character-rich however leaky, maintenance-heavy machines.

The triples, obtainable in 750cc and 900cc variants, have been the actual honeys of the bunch. Right here was an engine fairly not like something obtainable on the time from Europe, Japan, or the Americas, combining loads of punch with a heady soundtrack and one high quality you possibly can’t manufacture out of skinny air…character.

Triumph Trident Bobber

Our buddy Christian “Chris” Ahead (@Forwardstein) has lengthy been a devotee of those engines. As a veteran bike mechanic, he’s had an opportunity to check lots of the newest rockets out of Japan, however he at all times returns to those previous British-built three-bangers…

“There’s simply one thing about that early Hinckley triple that retains drawing me again.”

Triumph Trident Bobber

The construct you see right here began with a Honda CBR600RR swingarm, whose linkage mechanism fascinated Chris from an engineering standpoint. When he realized he might mate such a swingarm to a T300 Trident body, the undertaking picked up a velocity, gaining much more momentum when an everyday buyer, Aaron, noticed the swingarm sitting within the store.

“I advised him I wished to construct a motorcycle that appeared a bit prefer it had a inflexible rear finish. However in actual fact had suspension. I drew him a fast sketch of what I had in thoughts. He took one take a look at it and mentioned, ‘Can I purchase it when it completed?’ And the remainder, as they are saying, is historical past.”

Triumph Trident Bobber

The ensuing “Bobber” — as Chris calls it — is one other nice instance of what could be finished with these early Hinckley triples. And in contrast to numerous bobber builds, this one has the ability to again up its aggressive aesthetics. The fully-built and dyno-tuned Thunderbird engine is now pushing 114 bhp to the rear wheel — 44 ponies greater than the stocker!

Beneath, Chris offers us the total story of the construct in his personal phrases.

Triumph T300 Bobber: Within the Builder’s Phrases…

Triumph Trident Bobber

You understand how it’s if you see one thing, and your mind says dangle on a minute that’s by no means proper. That’s the way it was for me after I noticed the Honda CBR600RR swingarm for the primary time. You see the highest of the shock is mounted to the swingarm, in order the arm strikes up so does the shock. One thing that to today nonetheless fascinates me from an engineering viewpoint. I do know it really works and it really works very nicely, however after I take a look at it my mind nonetheless says that it shouldn’t.

Triumph Trident Bobber

Anyway in the future I had a CBR600RR in for a service, so I took the chance to take a number of measurements. Simply out of curiosity to see if the swingarm would match right into a T300 body. Bingo not solely would it not match contained in the body however the swingarm spindle is similar diameter. So onto eBay to discover a swingarm and rear shock. I received one for a really affordable value. When it arrived it was in want of an intensive cleanup. So I took it to work and put it within the degreasing tank. After cleansing I put it beneath my work bench.

Triumph Trident Bobber

A few days later, Aaron an everyday buyer of the bike store the place I labored, got here into the workshop for a chat. He noticed the swingarm beneath the bench and requested what it was off. So I advised him what it was off and that I wished to construct a motorcycle that appeared a bit prefer it had a inflexible rear finish. However in actual fact had suspension. I drew him a fast sketch of what I had in thoughts. He took one take a look at it and mentioned “can I purchase it when it completed?” And the remainder, as they are saying, is historical past.

Triumph Trident Bobber

This turned out to be the primary bike that I constructed for another person. Though I had my very own concepts of what I wished to create, I used to be now constructing a motorcycle for a buyer who had his personal concepts of what he wished. The unique plan was to make use of all of the components leftover from my cafe racer. Engine, forks, wheels and so forth.

Triumph Trident Bobber

I eliminated the rear subframe from the usual Trident chassis and tacked a brief one in place with a bicycle seat simply to get the ergonomics proper for Aaron. He came to visit to strive it on for measurement. After a number of changes we received the foot rests, seat, and bars in the correct place. My cafe racer was parked within the nook of the workshop on the time, and Aaron saved taking a look at it. His subsequent remark was: “it appears to be like significantly better with USD forks and spoked wheels.”

Triumph Trident Bobber

We received a Bonneville Scrambler entrance wheel and Tiger 900 rear from eBay together with a set of R1 forks and yokes. So started the construct. On Aaron’s subsequent go to, the bike was up on its wheels with the USD forks, CBR swingarm, spoked wheels, and engine in place.

Triumph Trident Bobber

On the bench subsequent to it was a Thunderbird engine that I had simply completed constructing with 955 liners and pistons, Daytona 955 cams, port flowed and skimmed cylinder head and a six-speed field. He took one take a look at the Thunderbird engine and mentioned, “Wow that appears so significantly better than the Trident one. Can I’ve that engine in my Bobber?”

Triumph Trident Bobber

The cafe racer had the same spec engine in it and that was placing out 117bhp and 69ft lbs of torque on the rear wheel. There was no motive to not anticipate the same output from the Thunderbird engine. It was then determined that with all that further energy, maybe a twin disc arrange for the entrance could be a good suggestion. So again onto eBay to discover a Tiger 900 entrance wheel with twin discs.

Triumph Trident Bobber

Aaron wished to introduce a bit of contemporary know-how into the previous carbureted Trumpet. So he opted for Motogadget’s M-unit blue, digital switches, anti gravity lithium battery, digital speedo/tacho, and LED lighting. The M-unit blue is a really intelligent little field of tips. It replaces all of the fuses, relays and permits for keyless ignition by way of your smartphone.

We did nonetheless match a bypass key change, simply so Aaron didn’t have to depart his telephone on the bike store whereas getting it MOT-ed or tyres fitted. Aaron wired the whole thing up with a customized loom he made. Having finished such a great job of it, he now handles all {the electrical} facet of Forwardstein’s customized builds.

Triumph Trident Bobber

The wheels have been stripped down to reveal hubs, powder-coated black by La Carousel (who additionally did the body after all of the fabrication was completed). New bearings fitted then despatched off to Hagon to be laced to black alloy rims 5.5x 17 rear and three.5×17 entrance with chrome steel spokes.

Though I’ve an English wheel, it’s less expensive for me to purchase ready-made mudguards. Richard Robinson at Causeway Bikes is an efficient supply for these, and really fairly priced.

Triumph Trident Bobber

The factor I like about constructing customized bikes is having to overcoming the issues that you simply create for your self. I wished the rear mudguard to suit as near the tyre as potential, virtually like a hugger, which additionally provides to the phantasm of being a inflexible rear finish. After all the wheel wants to have the ability to transfer forwards and backwards for chain changes. I needed to discover a solution to mount the rear mudguard in order that it might transfer with the wheel. This was achieved by mounting the primary keep to the rear caliper bracket and placing a slot on the entrance mount of the mudguard, enabling the mudguard to maneuver with the wheel when adjusting the chain.

The seat was fabricated from 3mm aluminium. It was then handed over to Jane at Fortunate Foot Trimming, who labored her magic on it. The long run plan is to make a small rack, which is able to mount to the bike utilising the seat mounting bolts and poke out behind the seat simply above the tail gentle. Simply haven’t discovered the time but to try this bit.

Triumph Trident Bobber

We wished the bike to have a minimalist look about it. In order that meant making an attempt to cover as a lot as potential. The coolant growth tank has been positioned contained in the body tube on the left hand facet, and the rear brake reservoir is in the correct hand facet of the body. The tail gentle wiring runs via the body. Battery is tucked in behind the fairing. Changing the usual coils and HT leads with stick coils so we might use the house beneath the gas tank to mount the M-unit and starter relay.

Triumph Trident Bobber

As talked about earlier the swingarm fitted straight in, simply wanted to show some spacers and make some new adjustable tie rods. Because the R1 forks are shorter than normal Trident ones, the entire bike has been lowered to maintain the rake and path the identical, therefore the adjustable tie rods. The exhaust is a reduce and shut job. Early 595 3-into-1 down pipes welded to T300 headers and an eBay silencer. Carbs are normal Mikunis with Ok&N pod filters.

Triumph Trident Bobber

Time for a visit to see Keith and Andy at Dynotech. They used to work on Jack Lilly’s race bikes in order that they know a factor to 2 about establishing the triples. Once they completed the Bobber was kicking out 114bhp and 70ft lbs of torque on the rear wheel. Fairly spectacular for a Thunderbird engine that’s usually about 70bhp and 50ft lbs!

Observe the Builder

Fb: Christian Ahead

Instagram: @Forwardstein

Extra Forwardstein Builds