TEC’s Latest Build – Flat Track Special; The Orca

TEC is proud to present our latest build; the ‘Orca’, named due to the colour scheme bearing a strong resemblance to a killer whale. A ’03 T100 was used as a base bike to create the ‘Orca’. The build has been completed partially to showcase many of TEC’s custom in-house designed parts available at www.tecbikeparts.com. Those of you considering building a custom Bonneville will want to check out the TEC Bike Parts YouTube channel which hosts a 6 parts series demonstrating the building of this street tracker. During the series George highlights how to avoid the usual problems involved with this level of modification. He shows how to fit an alternative tank to an EFI bike as well as how to delete the oil cooler.

TEC do not do customer builds, we mostly supply upgrade parts to specialist bike builders and bike owners who wish to customise their ride worldwide. George built this bike for his own riding pleasure, but has produced the videos to share his knowledge accumulated through his years in the bike trade to help you modify your own bike. You might think Street Trackers are a new thing; George has built lots of specials over the years including scramblers, café racers and even a chopper. But he has a thing for trackers and has now built 9 of them, Starting way back in 1974 with a T120 bonnie motor in a BSA frame using Trident 19” wheels and forks and a Yamaha 250 tank. The Trackers that followed were mostly Bonnie or XS650 based with a Kawasaki and a CCM thrown in the mix.

Absolutely everything including all fabricating, machining, paintwork, welding, plumbing and electrics were done by George in house
In the videos you will also be able to get an idea on the costings of the build with the finished bike costing a lot less than you would think!
This build was focusing on a bike that was fun to ride and can be used every day, but also had to look good from every angle.

Main Modifications
Oil cooler delete and oil run through modified front tubes.
Frame loop changed to suit XR style tracker seat
Custom alloy assembly for wiring/LED headlights/AMA number board
Rear peg triangles removed
EFI fuel system all frame mounted so the smaller early carb tank can be used.
Tank mounting angle changed

Parts List
Redmax – XR style seat
TEC- Alloy footrest/ levers kit
TEC – Adjustable front fork upgrade kit
TEC – Alloy adjustable piggyback gas shocks
Heidenau – K60 Scout tyres
Motogadget – Mini instruments
TEC – Alloy sprocket cover
TEC – Monza cap conversion
Stealth – Gold rear sprocket
Brembo – Levers/ master cylinder
TEC – Adjustable alloy steering damper kit
Fat alloy bars and clamps
TEC – Carb tops
TEC – Tracker 2-1 stainless exhaust system
TEC – Fork brace
K and N – Air filters
TEC – Short side panels
Pretech – 6 pot front calliper
TEC – Alloy finned oil cap
DID – Gold X ring chain
TEC – Clutch dress up kit
TEC – A.I. blanking kit
TEC – Thick alloy sump guard
Power Commander

Wheels /Tyres
Front -Thruxton 18” wheel with 110-18 Heidenau K60 Scout tyre.
Rear – Thruxton 17” wheel with 150-17 Heidenau K60 Scout tyre

EFI Thruxton motor, stock except for-
Wisco big bore 920cc piston and liners fitted
Heavy duty clutch springs
Lambda sensors removed, using a custom map on Power commander.