Search found 2964 matches

by JanBros
Fri Sep 21, 2018 10:07 am
Forum: Projects
Topic: forking help needed !
Replies: 5
Views: 103

Re: forking help needed !

ZXR is about 40kg heavier, so unless you are a heavy-weight yourself, you'd probably be better of with softer springs.
by JanBros
Sun Sep 16, 2018 4:18 pm
Forum: Projects
Topic: Hybrid project
Replies: 29
Views: 2029

Re: Hybrid project

that explains the difference perfectly :lol:
by JanBros
Sun Sep 16, 2018 9:22 am
Forum: Projects
Topic: Hybrid project
Replies: 29
Views: 2029

Re: Hybrid project

?

I have no spacer between carrier and swingarm.

http://users.telenet.be/jannemie/mijn%2 ... pacers.JPG
by JanBros
Sat Sep 08, 2018 8:35 am
Forum: Chit Chat
Topic: Question re 3XV TZR250.
Replies: 6
Views: 312

Re: Question re 3XV TZR250.

have one turned in alu with pressed on sleeves for, the bearrings.
or use different bearrings and an aluminium spacer between them, just like in wheels.
by JanBros
Fri Sep 07, 2018 5:38 pm
Forum: Chit Chat
Topic: Question re 3XV TZR250.
Replies: 6
Views: 312

Re: Question re 3XV TZR250.

have one turned in aluminium
by JanBros
Fri Aug 17, 2018 5:38 pm
Forum: Projects
Topic: The special one ...
Replies: 14
Views: 468

Re: The special one ...

tnx.

back bruised, stil not very flexible and hurts when trying.
by JanBros
Sun Aug 12, 2018 2:32 pm
Forum: Projects
Topic: The special one ...
Replies: 14
Views: 468

Re: The special one ...

Glad you are OK, Must be all the practice that you are getting good at crashing. Good to see the bike being used and you will have it fixed up in no time 8) back still hurts, was during 2 weeks of vacation, but I don't think I'll be back at work tomorrow or the entire week. practice is always good ...
by JanBros
Sun Aug 12, 2018 2:29 pm
Forum: Projects
Topic: The special one ...
Replies: 14
Views: 468

Re: The special one ...

uploaded them myself now
by JanBros
Sun Aug 12, 2018 9:06 am
Forum: Projects
Topic: The special one ...
Replies: 14
Views: 468

Re: The special one ...

topic should have been in chit-chat.

Image

Image

Image

Image
by JanBros
Sun Aug 12, 2018 12:17 am
Forum: Projects
Topic: The special one ...
Replies: 14
Views: 468

Re: The special one ...

podman wrote:
Fri Aug 10, 2018 9:49 pm
Remind me NOT to go for a ride out with you when we get over to Belgium next year... :wink:
:cry: :cry: :cry: :cry:
by JanBros
Thu Aug 09, 2018 9:41 pm
Forum: Projects
Topic: The special one ...
Replies: 14
Views: 468

The special one ...

... no, not that overpayed portugese version :mrgreen: http://users.telenet.be/jannemie/1.jpg the scene : http://users.telenet.be/jannemie/2.jpg just a tiny bit of too much braking into the corner and the front was gone. the black mark in the middle of the street is from my blocked tire, ther were o...
by JanBros
Sat Jul 28, 2018 10:15 am
Forum: Engine
Topic: Squish clearance and compression ratio - advice please!
Replies: 31
Views: 3228

Re: Squish clearance and compression ratio - advice please!

ok, just measured a KR1 piston :

crown height is 3mm
gives a radius of 132.17
with 0.8mm squish gives a tangent angle of 12.6°
parallalel squish would be 10.4°
by JanBros
Thu Jul 26, 2018 12:46 pm
Forum: Engine
Topic: Squish clearance and compression ratio - advice please!
Replies: 31
Views: 3228

Re: Squish clearance and compression ratio - advice please!

for performance it is better to have parallel squish (and no radius at the edge of the bowl, Jan Thiel has tested this extensivly at Aprilia) . I only put tangent as a possibility as that is what some people want. 17° surely is a lot :shock: from memory mine are amways arroung 10° but it all depends...
by JanBros
Tue Jul 24, 2018 11:13 pm
Forum: Engine
Topic: Squish clearance and compression ratio - advice please!
Replies: 31
Views: 3228

Re: Squish clearance and compression ratio - advice please!

sorry Scooble, maybe my figures are wrong . Have to check why, maybe they are from my YZ125 piston's. place the piston you are going to use on it's head, and measure the distance from the floor to the piston crown. In my new calculator, select height and enter the measured height, and it will give y...
by JanBros
Fri Jul 20, 2018 4:42 pm
Forum: Chit Chat
Topic: KR1S tyres
Replies: 13
Views: 564

Re: KR1S tyres

haven't tried that combo, but have used about anything I had lying arround/available at the time and never had a bike doing "weird stuff". Even radial/diagonal combinations.