Male seeking Ct 70 parts

Lilwildcat13

New Member
A0003E01-A421-4851-A469-D64E7EC13D7B.jpeg Hello everyone! Just recently purchased my first ct70 from eBay! Well not a full bike that is haha. I got the frame, original rear fender, rear shocks, and engine cradle from a seller on eBay then found a decent looking swing arm from a different person and bought it as well! Still in the process of looking for parts before I get it sandblasted so I can get it repainted. If anyone has a decent set of front forks with headlight ears that aren’t bent up too bad I’d be very interested. Would like to keep the original look to the bike so I’ll include a couple photos and if you have anything that I don’t and you would part with I would definitely be interested and would pay fairly along with shipping. I also have a couple questions starting out.

  1. Has anyone purchased the fastener kit for Ct 70 frame and wheels from CHPmotorsport? It looks like a fairly decent kit with 166 pcs for $80 but I was looking for an honest review.
  2. If I put a Piranha 140cc motor in will I still be able to use the original engine cradle? Should I use the piranha 140 or should I do something different? I’m completely lost on what I want to do with the engine. I would like to be able to ride up and down the road to the local park or load her up and take her to the camp and explore the camp ground. I want enough power to be able to pull the front wheel off the ground!

All the help and advice is greatly appreciated!
 

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cjpayne

Well-Known Member
On the motor, I would go with what racerx or OLDCT has to say. IMO, keeping the original look is paramount. Mod the original to a 128cc( I think its the max) and have a ball!!!!
1. the fastener kit is good, but not 100%correct. I asked them about it and got the usual.
2.Get another stray engine off ebay or something and mod it to the max, if thats what you want. PLENTLY of parts to do that.
 

Z50nut

Active Member
Congrats on purchasing a ct70 "ko" frame. Maybe your first move is to determine how you'd like to use this bike. That will likely determine much of what you buy and build. For instance, ko models came with the pogo style fork set up. Although some prefer the look of these, they don't provide the best ride as compared with the later style forks. That stated, most of the later style forks are compatible with your frame. Consistent with CJ, there are a ton of build options for an oem engine, and you could build it to your liking. You'll find no shortage of ways to spend money on these little machines. Aftermarket engines typically command less when resale becomes a consideration. Whichever route you go, have fun and ride it. I'm confident you'll get expert advice and abundant parts options from your membership at lilhonda.
 

69ST

Well-Known Member
What you're starting with is ideal for a custom build, imho. There's nothing there to be sacrificed, discarded, or shelved...and...the normal garbage (ancient tires, rotted exhaust, destroyed seat, mangled/pitted chrome pieces, etc) have already been recycled (we'd like to think, anyway). IOW, instead of having to decide how much of a complete original doesn't fit your plans, you're resurrecting an otherwise left-for-dead frame, putting one more bike back into use. What's not to like?

Best advice I can offer, for now, start with a clearly-defined goal. That will get you pointed in the right direction, at least. The more clearly you can define/refine, the more the project will tend to dictate itself. At a minimum, you're going to want better-than-stock suspension, regardless of whether it's going to be a low-speed/offroad, or on-road, machine. For anything offroad, you won't need much horsepower. On wheels this size, 35mph, over anything but decent pavement is plenty fast. Over rough trails, it may be impossible. If road use is part of the plan, consider where you'll be riding and how many miles. These days, 60mph is pretty easy to achieve but, that's the easy part...there's much to consider, if one wants a machine that's balanced for speeds above ~45mph...and plenty of options.
 

wanrep

Active Member
I've used the CHP hardware kit and felt the same way cjpayne did.
The last hardware kit I bought was a 239 pc. stainless steel kit from socalct70parts on Ebay for $86.
All of the screws are allen head instead of JIS phillips. If you don't mind the non-oem look, it's a good kit.
 

Lilwildcat13

New Member
Hey guys! Thanks so much for the responses and the advice! This build will definitely take a little while as I would like to take my time to ensure I don’t miss anything. Also not to mention parts can get pretty pricey. I’ve determined this build will be intended for on road use. Riding it maybe 5 to 10 miles at a time. Nothing too crazy. Just around the block or a ride down the road the the local park. I might ride it through the the yard a couple times but for the most part it will be used on the road.

  1. That being said I know I will need to upgrade the wiring harness to a 12v aftermarket harness. I have been looking into the 12v universal harness from trailbuddy ever since I watched minibikemike from YouTube tear into one for a ko bike he had been redoing. Taking all the unnecessary wiring out and cleaning things up, it really seemed like a nice quality wiring harness.
  2. I believe I’ve decided on going with the Piranha 140cc. However there’s a couple things I’m concerned with. And if I should look into a different motor please say do!Do all the Piranha 140’s have a stator? Im concerned because of course I would need a headlight and taillight. Sorry if that was a dumb question. Also if I use this engine will I need a specific aftermarket set of foot pegs?
  3. Which aftermarket front forks would you use and why? I want to keep the high mount front fender and would like to keep the front head light/speedo bucket look but if it has to be changed for better forks and handlebars so be it.
Thanks everyone for your input and honest opinions. It truly means a lot to have the help and support of everyone. And please if I say something wrong please correct me or tell me I’m wrong!
 

lukelaw1

Active Member
The biggest question to ask yourself is how much to spend and what is your budget. With a bare frame options are endless. If money doesn't matter then inverted front forks, bmx style bars(79 and later ct70), led headlight, aftermarket bar controls, digital speedo, the 140 would give you the speed you need, Mikuni carb, modified ct70 foot pegs, new HD rear shocks, extended swing arm, programmable led taillight, new seat, high flow aftermarket exhaust, and fresh paint on the frame, maybe aftermarket turn signals if you want.
 

kirrbby

Well-Known Member
Hey Lilwildcat13. I'm sorry I haven't been any help to you. I've been struggling to work minibike time into my schedule lately. It DOES look like you're off to a great start tho.

If you've seen minibike Mike's video with the 12v wire harness, that may well be a good option for you. It could be done quite a bit cheaper...but it wouldn't be as easy as the trailbuddy setup.

I believe the piranha 140 always comes with a stator that will power lighting. If there is any question when you get ready to buy...ask the vendor, or post a link here, and we can help you.

Front forks, for a street bike... One thing I know for sure about modifying these bikes...the farther you stray from stock, the more trouble it is to make it work. For that reason, and a few other reasons, I'd recommend using a K1up CT70 front end. They work pretty well for all but the most extreme street riding, and they are tried and tru, to fit and work, on a CT70. Use the Honda front end, and all the parts that belong on it. Everything is available and easy enough to find, and rebuild, using new or used Honda parts.
Plus, the Honda CT70 parts will look right at home on your Honda CT70 motor bike.
 

kirrbby

Well-Known Member
I think you could use the engine cradle with the piranha engine. It will depend moreso on what exhaust you use. Most of the aftermarket exhausts drop down... in the way.

You will likely need to use different footbar, as the stocker isn't wide enough for the wide engine. They are available.
 

Ozpall

Member
i started mine with just a bare frame, i did rear piggy back shocks from trail buddy. front 30mm forks w disc brake from trail buddy and headlight ears. powder coated the frame and wheels, im running a lifan 150cc, new seat from eBay trail buddy helped me out with he wiring harness which im still not done wiring my lights but she runs, handle bars and controls from amazon all are 7/8" clutch and brake cable from amazon as well and a mukini carb from tboltusa. led light bar from amazon. aluminum swing arm, DID gold chain.

https://lilhonda.com/index.php?threads/the-white-beater-project.21947/
 

Lilwildcat13

New Member
Alright guys got a couple parts ordered and got a couple other questions! Was on eBay the other day and saw this steering stem from a 1973-1974 and ordered it. Was wondering if anyone knew if these forks from a 1972 model would fit in this steering stem? It seems like they should but just wanted to see if anyone knew for sure! Also got my fastener kit ordered from CHP Motorsports, seat latch, seat hinge, brake pedal arm, brake rod, and a couple other things from Northeast Vintage Cycles.
 

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kirrbby

Well-Known Member
Those parts WILL work together. The triple tree is from a K2 or K3. The fork legs from a K1. But they'll work on your K0 frame no problem. You'll need more parts tho, and you'll need to decide if you're going to use K1 type covers and headlight ears, or, K2 up style.
 

OLD CT

Well-Known Member
Post #11. My bet is this dude is going to wipe out on the street fairly quick! The exhaust is going to get wasted if that bike is going to be ridden off road. Knobby tires and that stupid exhaust is a bad combo.
On OR off road! LOL!
 

kirrbby

Well-Known Member
If I owned a frame like that one, I'd absolutely want to build a bike with it.
Does anyone have one that's weathered THAT badly and want to sell it??
 

Lilwildcat13

New Member
Haven’t posted in a couple months so I figured I’d give everyone an update! Got the steering stem and forks in temporarily. Drained the forks of the nasty watery oil that was in them and ordered new fork seals since the old ones were leaking. Also need to source new steering bearings. Does anyone have any recommendations? Was thinking of going with some tapered bearings.

Next I believe I’m going to order the billet aluminum top plate from Trail Buddy since I’ve decided to go with some ProTaper bmx style bars. As far as the headlight goes I believe I’m going to go with the 7” Nilight led light bar from amazon since it’s a fairly cheap option. Maybe in the future I’ll switch to a original looking headlight bucket and speedometer but for the time being I’ll download an app on my phone to keep track of my speed.

Obviously I still need a lot of parts like gas tank, seat, rims, hubs, foot pegs/kickstand, and most importantly an engine. I still plan on going with a Piranha 140cc engine from tbolt.com. If anyone has any of these parts as spares and wants to make a little cash let me know and maybe we can work something out.
 

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kirrbby

Well-Known Member
Hey Lilwildcat. We haven't been much help to you...let's see if we can start doing better...

I'm not familiar with that part. Looks like it's best used with bmx type handlebars. But it might work with ct70 K1up bars too. I think trailbuddy is really good folks to deal with. A email or call to them might be best. They'll probably ask you about the spacing...measurement, between your fork legs. Center to center of the top holes.

Update us here about what parts you're needing...I have a ton of stuff, some others do too. Maybe we can help get you crackin. Your fork legs look like they're from a K1. I'm not sure about that black triple tree tho.
 

Ozpall

Member
i used it on my build but with their 30mm forks, you can also get them for the other handlebars not just bmx style, i drilled my own holes for the handlebar risers. worked fine, looks fine. price is good.
 
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