Forum

Login

Register

By registering at the KZrider.com community, you agree to the following terms. KZrider.com reserves the right to remove any posting it finds unsuitable. Members who refuse to play by the following rules will be excluded from the discussion board.

PRODUCT OR SERVICE ADVERTISING IS STRICTLY LIMITED
KZrider is more than a website. Its members comprise a community of KZ enthusiasts dedicated to encouraging and preserving our sport and passion for Kawasaki Z, Z1 and KZ motorcycles. We pursue our passion because we enjoy it, not to make money from it. To that end KZrider.com is not a place for you to solicit sales of any kind. No member is allowed to refer to their own business, or any business to which he/she is associated, through the discussion forum or personal messaging system (U2U). Be aware, the U2U feature has been abused in the past. If any member solicits an unwelcomed solicitation through the U2U system please report that solicitation to the Administrator or Moderators promptly.

There are four exceptions to this policy:
1. As permitted in Classifieds (consumer-to-consumer transactions).
2. An item may be offered for sale as a consumer-to-consumer transaction in any forum where there exists reasonable expectation of being welcomed by another member who has previously posted in the thread ("cold calls" and "door-to-door" solicitations are prohibited).
3. Each member is allowed a simple link (somesite.com) in their signature, which link shall include no description of any kind.
4. Paying advertisers are allowed to post in the Vendor forum.

KEEP IT CLEAN
You may not post libelous or defamatory messages or materials, or include links to such materials in your postings. You may not post messages that are obscene, violent, abusive or designed to harass or intimidate another individual. Pornography, Warez, or any other illegal transactions may not be posted or included in members profiles. No blatant nudity.

BE CIVILIZED
Don't use racial, ethnic, or gender slurs, religiously derogatory comments or any other personal discriminations even in jest. Use of slurs needlessly offends people - whether or not they're a member of the group you've insulted. Respect others' religious beliefs and culture. Recognize that others have religious and personal beliefs which may differ from yours. Stay away from political debates. Keep the language and behaviour appropriate.

USE DESCRIPTIVE THREAD TITLES
When you post a new thread, please give users some idea of what it contains in the title. Thread titles like "Help" or "Check this out!" are cheap ways of getting users to look at a thread they might not care about, and would not have clicked on had the full title "Help, I need credit card numbers!" been used. Furthermore, it helps stop multiple threads on the same subject. When starting a new thread, describe the content of your thread clearly in the 'Subject' line of your post. Don't use vague subjects. Use descriptive and specific subject lines. This helps others decide whether your particular words of wisdom relate to a topic they care about. For example: "HELP!!" is not an appropriate subject and neither is "My bike doesn't run".

PLEASE DON'T SHOUT!
That cap lock key wasn't invented to help you get your message across. Messages written in all caps are annoying, hard to read, and loud.

HAS IT BEEN POSTED ALREADY?
Please look for an existing thread on a subject before you post one about it. Chances are good that your question has already been answered. There is a search feature on these forums, use it. Starting topics that have already been answered in great detail is a waste of everyone's time. Look to see if information you're about to post has just been posted by someone else. Then go ahead and post.

WE HAVE SECTIONS FOR A REASON
The Technical Forums have different sections for a reason. If you're not sure, use your best judgment. 

DON'T CROSS-POST
Cross-posting is when you post the same message multiple times in various threads or forums. We only need to see it once guys. 

STAY ON TOPIC
Keep threads on topic. If you've got something completely unrelated to say then start a new thread. Unresponsive solicitations for consumer-to-consumer sale are prohibited as being unrelated and off topic, but solicitations for consumer-to-consumer sale may be posted in Classifieds.

CONSIDER THE IMPACT OF YOUR WORDS BEFORE POSTING
Adhere to the same high standards (or higher) of behaviour online that you follow in real life. In real life, most people are fairly polite and law abiding. The same rules of behaviour are expected on any list.

MESSAGES SHOULD CONTRIBUTE TO THE TOPIC BEING DISCUSSED
or introduce a relevant idea. If you've read enough threads, you've already learned how annoying it is to go through "Me Too" posts. A "Me Too" is a post that says "I agree with what the other guy said" and otherwise does not add to the content. If you have a comment about someone else's post, tell them via U2U or email. Generally speaking, unless it concerns the entire group and is within the group's stated purpose, you should reply only to the author. Avoid replies or responses to the whole list of yes, no, or "I agree!". This is meaningless and you too would be annoyed to open such a message.

WELCOME TO KZRIDER
If you are a new member, introduce yourself by posting to the New Member Forum. While it's nice to welcome a new member, only do so if they have posted in the New Members forum. There is no need for 50 welcome posts in a technical forum thread.

U2U IS A WONDERFUL FEATURE
Please don't start a topic that is directed at one person that could be put into a U2U to them. If you have a message for one or two posters, use U2U or email.

PICTURE PERFECT
Images & attachments may be posted as long as they are not explicive or offensive. Images are limited in size to 2mb. The Project Forum is for members' rides only and is an ideal place to document your rebuild.

FLAME-WARS
Don't even start them, they will be ended, quickly, and you'll find yourself on the short bus. Flaming: Personal attacks in cyberspace can be particularly vicious. Flaming is the rather nasty art of attacking others on a personal level.

  • Register
Welcome, Guest
Username: Password: Remember me

TOPIC: hardtail kz 650

hardtail kz 650 2 years 7 months ago #505920

Ok started out with a 78 KZ 650 frame thought it might make a sweet Bobber just wanted some opinions on what everyone thinks ill post pic as I go
Attachments:
The administrator has disabled public write access.

hardtail kz 650 2 years 7 months ago #505927

Front end is a 81 KZ1000 I WAS TOLD would not fit into stock tripletree but slid in without a prob and the swing ARM was extended 4 in as well and was told it would not fit either but fit perfect go figure I've got a motor that I'm rebuilding ill post pic when I get home
The administrator has disabled public write access.

hardtail kz 650 2 years 7 months ago #505946

  • 650ed
  • 650ed's Avatar
  • OFFLINE
  • Member
  • Posts: 9568
  • Thank you received: 1180
An essential hardtale accessory you may want to consider:

1977 KZ650-C1 Original Owner - Stock (with additional invisible FIAMM horn)
The administrator has disabled public write access.

hardtail kz 650 2 years 7 months ago #505970

  • jordan
  • jordan's Avatar
  • OFFLINE
  • Member
  • Posts: 949
  • Thank you received: 3
hahaha thats awesome! ive road my fair share of rigids and dont mind it too much but im young, my buddy's dad rode his son's rigid to sturgis with us last year and that poor guy rode all day on that thing. He was in a fair amount of pain in the morning, then watching him have to kick start that big v-terd to continue the trip was even more brutal :S
KZ810 streetfighter kz/gpz/gsxr
1983 gs1100e
1979 KZ 1000 1428 dragbike project
1974 kawasaki H1 500 sold :(
1972 Kawasaki s2 350-parted on ebay :(
1973 Kawasaki s2 350-parted on ebay :(
1982 kz750(sold)
1978 kz650 hardtail(sold)
1975 honda xl250-sold
1971 yamaha R5-sold
1982 yamaha xs400
The administrator has disabled public write access.

hardtail kz 650 2 years 7 months ago #506410

That's funny looking pretty good so far got the motor in and an old gas tank off an old man don't know much about it but looks like its from the 60s or70s sorry I don't have pic yet but I will take some when the sun comes up can't sleep with so much 2 do on the bike lol
The administrator has disabled public write access.

hardtail kz 650 2 years 7 months ago #506601

  • xbmxxx
  • xbmxxx's Avatar
  • OFFLINE
  • Member
  • Posts: 83
dang, I like the way your hardtail came out way better then mine!
76 KZ750B Twin
The administrator has disabled public write access.

hardtail kz 650 2 years 7 months ago #506606

  • nobody
  • nobody's Avatar
  • OFFLINE
  • Member
  • Posts: 186
  • Thank you received: 8
like what you got going ,however do you think its strong enough ?looks like it will fold up :unsure: ,hope im wrong i do like the look .will you post more pics please :lol:
The administrator has disabled public write access.

hardtail kz 650 2 years 7 months ago #506995

Well I used the same tubing they make funny cars out of and tig welded everything the material I used is way stronger than the original frame tubing also the extended swing ARM is welded at its pivot point and I am still going to add another piece across the new rails but still need to make a seat so that will be addresses at that point in time
The administrator has disabled public write access.

hardtail kz 650 2 years 7 months ago #506997

Found ths old tank off some old chopper from the 70s looks like crap when I sat it on the bike so I took a grinder to it and cut the bottom out of it and dropped the front a B) bout 2in tank should hold about 2 gallons should be just enough to ride to work and back
Attachments:
The administrator has disabled public write access.

hardtail kz 650 2 years 7 months ago #506999

The engine I got in it is just a mock up motor I just got the engine I'm using put back together and painted gloss black fresh rebuild on it just need to buff the covers out
The administrator has disabled public write access.

hardtail kz 650 2 years 7 months ago #507008

By the way for the guy asking about the frame being solid enough the material i used is known as chrome Molly seamless tubing rated at 100000 psi which is 50tons if I did my math rite as far as I'm concerned its over killed
The administrator has disabled public write access.

hardtail kz 650 2 years 7 months ago #507033

  • 650ed
  • 650ed's Avatar
  • OFFLINE
  • Member
  • Posts: 9568
  • Thank you received: 1180
kzbellrider wrote:
By the way for the guy asking about the frame being solid enough the material i used is known as chrome Molly seamless tubing rated at 100000 psi which is 50tons if I did my math rite as far as I'm concerned its over killed

The 100,000 lb. rating you mention refers to tensile strength. Tensile strength is the measure of the amount of force it takes to pull a material apart (see video below of tensile strength test). Tensile strength is unrelated to how much a given material will flex.

To quote an article discussing the use of chrome-moly in bicycle frames:

Chromoly (Chrome Molybdenum) Steel
A workhorse of the industry, chromoly is a light, strong steel. When it is butted and shaped to take off excess weight, it can deliver a fairly light frame that will last through years of hard use. Chromoly is responsive and offers good flex while maintaining its form.

Flex is not out friend in motorcycle frames. This is why frames have so much triangulation built in - to reduce or hopefully eliminate frame flex. Once you reduce the frame to a single tube, you can expect flex. Believe it or not, even a rifle barrel flexes when a shot is fired through it, but that is not a reflection on the quality of the material being used. There’s a reason bikes with single tube frames are known as flexible flyers.

1977 KZ650-C1 Original Owner - Stock (with additional invisible FIAMM horn)
Last Edit: 2 years 7 months ago by 650ed.
The administrator has disabled public write access.

hardtail kz 650 2 years 7 months ago #507034

  • loudhvx
  • loudhvx's Avatar
  • OFFLINE
  • Member
  • Posts: 6458
  • Thank you received: 331
I think he was worried because in the first photo with you working on it, the photo is dark and it's difficult to see that you have a brace going to the middle of the upper section (from the frame to about where the seat will be). With that brace, I think it's plenty strong.
The administrator has disabled public write access.

hardtail kz 650 2 years 7 months ago #507037

  • 650ed
  • 650ed's Avatar
  • OFFLINE
  • Member
  • Posts: 9568
  • Thank you received: 1180
I see in his latest pictures that he kept the 3-tube backbone. There should be no problemo with that. I though he had or was going to cut the lower 2 tubes off like I have seen some folks do (bad move) leaving only the single center backbone tube. Ed
1977 KZ650-C1 Original Owner - Stock (with additional invisible FIAMM horn)
The administrator has disabled public write access.

hardtail kz 650 2 years 7 months ago #507066

Yes sorry shop does not have the best light
The administrator has disabled public write access.

hardtail kz 650 2 years 7 months ago #507340

  • nobody
  • nobody's Avatar
  • OFFLINE
  • Member
  • Posts: 186
  • Thank you received: 8
sorry i opened that can of worms :unsure: like i said i like it! :woohoo: and i do want to see more. sorry if i offended you
The administrator has disabled public write access.

hardtail kz 650 2 years 7 months ago #507345

Like I said just wanted some honest opinions no hard feelings if everyone's bike was the same we all would not be talking but I do need some rear finder ideas I've got a old front finder off a 76 Harley flh I'm thinking about using I'm running a 16 in the back with a 140 tire
The administrator has disabled public write access.
Keyword