* 1978 ATC 90/180 Pauter PJ1 / Springer "Team BAPP" Bike *

[Joseph Farrow]

Okay here are the specifics on the Chassis.
All of the Team BAPP Bikes used Dickson "Sprint" Frames and front Springers. As noted earlier I built this bike the way I would have built it back in the day if I had unlimited $$$ and resources. With that being said I used a Pauter PJ-1 frame vs the Dickson. The PJ-1 was built by Pauter Machine for the PJ-1 Race Team. Not sure how many of these frames were built but from all accounts there were very few. The frame is several inches longer in the front. At least two inches longer out the back and the motor is four to five inches lower and moved forward. It has a very low center of gravity. Excellent for TT and Flat Track Racing.

I did use the Dickson Springer on the front. I always love the springer front ends. They are simple yet effective suspension. I want to personally Thank JWheeler for donating this piece of the bike. I knew way before I started this build I had to have this piece.


We'll start at the Front and work our way to the back.

For bars I have Renthal. They were what everyone ran. I used a "CR" Style Clutch Lever and Perch as well as a "CR" style push button kill switch. The twist trottle is a BAPP 1/4 turn.


The front Hub is an aftermarket Dickson. The front Wheels are Trick Trike Turbine with a Goodyear 21x11x8 Compass. You had to have a Goodyear knobby for the front.


I lowered and used cleated pegs. You lowered the pegs so you would have a lower center of gravity.


In the back I again used Trick Trike turbines. Tires are Carlisle Turf Savers 18x9.5x8. 3" Rocky Wheel Spacers, Axle Boots.


BAPP Chain Tensioner, BAPP 38T Rear Sprocket and a Precision Engineering Rear Disc Brake using a Hurst Airhart caliper.


Finally the Rear Fenders are Trick Trike LowPro race fenders. The tank is a stock Honda ATC90. The rear seat cover is a Saddleman's. I wanted to have a seat cover made to replicate the Team BAPP covers but I kept running into road blocks. Still haven't given up on that yet.
I used "Sunburst Yellow" for the base and added the other traditional BAPP Logo Colors. I did the paint myself. I did have the 'Blue" pinstripe and text add.



Well I think that just about does it for the Chassis.
Next installment will be the MOTOR!!!

[Joseph Farrow]

For the final installment I will detail the Motor.


It is over 180cc with a 61.5mm Piston and a 63mm Stroker Crank.
We'll start at the Head and work down.
The head is ported and polished. It has HD S&W Valve Springs with titanium keepers. Lightened Stainless Steel valves. Lightened Rocker Arms.
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I am running a BAPP Streaker II cam and a Tri-Cool aftermarket Oil Cooler.

[Joseph Farrow]

Carb is a 24mm Mikuni with a BAPP "Long" Manifold and a foam Uni Filter. The carb also has a Sudco Pumper Kit.


The Cylinder is an Aftermarket Pauter Machine with a 61.5mm Piston. The Piston is a OEM Honda CB750 piston machined down to work in the ATC90 motor. It also uses a 6mm spacer plate to accomodate the ATC110 15mm eye Stroker Crank and brass base gasket.


Crank is a 63mm Krazy Stroker. It is lightened and reinforced. Check out the comparisons vs a stock crank. The rod is so far out on the fly weights that it is machined down and the center cases had to be machined just so the rod would not hit. Would like to Thank 3WW member Kickstand1 for donating the crank for this build. I have never seen one like this. I bet at high RPM's you can fell it from your hands to your feet. lol


Check out the Crank and Piston together. This is how you more than double the displacement of an ATC90!!!

[Joseph Farrow]

The Fly Wheel is lightened. I have a Quick Change Sprocket Assembly and a Manual Clutch set up.


With this much Volume and Compression you have to have the motor vented. I vented the upper valve cover, crank case and clutch side dip stick.


It all flows through a Chrome BAPP Stinger Pipe.


It also has a super trick "no pun intended" Trick Trike Finned Pull Start Cover. Thank you to 3WW member Shortline10 for donating the super rare and hard to find cover! A BAPP pull start handle and a BAPP Mega Recoil Cable to handle all the compression.


Finally the case is protected by a BAPP Chain guard.

[Joseph Farrow]

I would like to thank everyone who help me with this bike. It is still a work in progress. As I run across things that I think will make it better I will add them to it. Again I built this like I would have back in 1980 if I would have had the resources. It is my take on a Team BAPP bike. It is not 100% correct but close with my own touches.

[OZQUAD44]

Joseph, what a great read, and an awesome outcome. I just love how you have remained true to that teenager whose dreams came from a simpler time.

We all had our dream machines, mine was the 87 t3 and I've owned two in my life, but you managed to build yours from scratch which is different. Right down to the last detail and turned your dream machine into reality. (Corvette summer anyone?? [emoji854]) That is what three wheeling is about.

Now all you need is some other like minded souls, with period correct machines, to get out onto a track and rock on....... [emoji848], well maybe not.... 1980 was a long long time ago, and if your anything like me your knees ain't what they used to be [emoji12][emoji12][emoji12]


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[Joseph Farrow]

Joseph, what a great read, and an awesome outcome. I just love how you have remained true to that teenager whose dreams came from a simpler time.

We all had our dream machines, mine was the 87 t3 and I've owned two in my life, but you managed to build yours from scratch which is different. Right down to the last detail and turned your dream machine into reality. (Corvette summer anyone?? [emoji854]) That is what three wheeling is about.

Now all you need is some other like minded souls, with period correct machines, to get out onto a track and rock on....... [emoji848], well maybe not.... 1980 was a long long time ago, and if your anything like me your knees ain't what they used to be [emoji12][emoji12][emoji12]


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Ozquad44 you are correct about the "Simpler Times". Its crazy how things change in such a short time. In relation to the grand scheme of things.
My brother and I have plans to take our "Dune" bikes out to the dessert and have one good ride and our "Race" bikes to Pine Lake - Ashtabula OH at least one time. Kinda a Bucket List thing. I raced the Nationals at Pine Lake on a Three Wheeler and a Quad but would love to take my 90 around the track for Old Times Sake.
I've been to Glamis but did not have a bike. I asked myseft then.....what am I doing out here without a Bike. It has to be an awesome thing to ride those dunes. Pic's do not do it justice. It's like the Grand Canyon and Niagra Falls. You have to see them in person to appreciate it.
Thanks again for the compliments and for seeing our vision.

[Ol Deuce]

Hey Guys finally getting around to posting a build tread for my Team BAPP Replica race bike.
I pretty much had it finished last year but not 100%. I still have a few minor details I would like to complete but it is close enough to share.



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I will start this tread like the others and post pics of the finished bike and then specifics at a later date detailing the engine, chase and other components.
It was build from nearly all NOS and reconditioned period correct parts.

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Joseph..........:-) ........what rear fender was used on this project??? Kinda looks like a cross of atc70 & atc90 ???? Ol Deuce

[Ol Deuce]

Hey Guys finally getting around to posting a build tread for my Team BAPP Replica race bike.
I pretty much had it finished last year but not 100%. I still have a few minor details I would like to complete but it is close enough to share.



Attachment 241142Attachment 241143




I will start this tread like the others and post pics of the finished bike and then specifics at a later date detailing the engine, chase and other components.
It was build from nearly all NOS and reconditioned period correct parts.

Attachment 241146Attachment 241147Attachment 241148Attachment 241149Attachment 241150Attachment 241151Attachment 241152Attachment 241153Attachment 241154Attachment 241155Attachment 241156Attachment 241157

Joseph..........:-) ........what rear fender was used on this project??? Kinda looks like a cross of atc70 & atc90 ???? Ol Deuce

[jakep53]

WOW that is amazing it looks so good i wish so badly i was around in those times to witness these in their prime time!!
amazing build!!

[Joseph Farrow]

Joseph..........:-) ........what rear fender was used on this project??? Kinda looks like a cross of atc70 & atc90 ???? Ol Deuce

They are a copy of the Trick Trike Low Profile Race fenders. Jeremy (90 Crazy) found a good original set and had a mold made to reproduce them. They are basically the 90 fenders moved down about three inches.

[Ghostv2]

They are a copy of the Trick Trike Low Profile Race fenders. Jeremy (90 Crazy) found a good original set and had a mold made to reproduce them. They are basically the 90 fenders moved down about three inches.

Does he still have any he wants to sell? [emoji57]

[Joseph Farrow]

Does he still have any he wants to sell? [emoji57]

I dont think he has any more left. At one time he was trying to sell the mold.....

[Ol Deuce]

They are a copy of the Trick Trike Low Profile Race fenders. Jeremy (90 Crazy) found a good original set and had a mold made to reproduce them. They are basically the 90 fenders moved down about three inches.

Thank you Joseph Ol Deuce

[Joseph Farrow]

A couple of small additions to the bike....

First my brother hooked me up with a super cool and trick SoCal "Blue" Tail Light Lens.



Second a board member also hooked me up on something you dont see very often today......
A NOS BAPP tank strap. (Keep and eye out on ebay. I hear there has been a "Mother Load" of super trick BAPP and other aftermarket and Hi Performance items found that should be hitting the market soon!)



Stay tuned. I'll keep you guys updated. I still have a few more small items I want to add.