I know the BBR cradle helps out but I know that there are other frame mods that some of you guys have tried out. Zook did you ever post pics of the mods to your frame? They sounded pretty professional.
Would be good to have a list of recommended frame mods on the forum.
DRZ125 Chassis Mods
Started by
beamishnz
, Mar 15 2007 09:37 AM
27 replies to this topic
Posted 15 March 2007 - 06:01 PM
yeah here are come pix:
left lower frame
shock tower butterflies:
Lower frame gussets to stop the lower frame from twisting:
Tabs beefed up w/ 1/8'' more of material added:
Left lower frame:
Right subframe:
Left Subframe:
left lower frame
shock tower butterflies:
Lower frame gussets to stop the lower frame from twisting:
Tabs beefed up w/ 1/8'' more of material added:
Left lower frame:
Right subframe:
Left Subframe:
Posted 16 March 2007 - 02:07 AM
Now that's what I was after! Thanks Zook:thumbsup: Looks like a very professional job. I remember you saying a guy had given u a god price for that. What did it set u back?
Posted 16 March 2007 - 07:51 PM
Yea how much did it cost?? I'm interested in this, dont want anything to break.
Posted 20 March 2007 - 01:01 PM
yep that figures I was away for a few weeks over xmas. I should have searched! 
Looks a nice job and $150 is good value.
Looks a nice job and $150 is good value.
Posted 24 March 2007 - 05:43 PM
lol ever since my crash at sheridan lake my frame has needed to be welded badly I'm definately gonna beef it up with some extra steel looks good zook thanks for the idea.
Posted 22 October 2007 - 12:55 PM
Hi Zook - Just getting my frame mods done now. Can you canfirm what size plate used for gussets and tabs etc. Looks like 3mm but just wanted to check. I have a guy working on the structural steel for my house and he is a VERY tidy welder and says that he'll do it for a few beers!
Posted 22 October 2007 - 06:16 PM
beamishnz said:
Hi Zook - Just getting my frame mods done now. Can you canfirm what size plate used for gussets and tabs etc. Looks like 3mm but just wanted to check. I have a guy working on the structural steel for my house and he is a VERY tidy welder and says that he'll do it for a few beers!
nice...
its about 3.3mm...or exactly 1/8 inch...that is with primer and paint...
so about 3mm, and its regular steel, not chromo. he said regular steel is more rigid...
glad to say that the gussets he installed are holding up very well, no cracking or bending anywhere...and this is with 60foot+ jumps with my fat ass on it...
I did a bit of inspection when i did my swingarm bearings
Posted 23 October 2007 - 03:23 PM
Thanks Zook. That is what I guessed. I'll post pics when mine is done. I have a hand built British frame for an RL250 that has similar strengthening gussets on it. I'll try and replicate some of the finishing details from that.
Posted 25 October 2007 - 02:36 PM
Just been looking closely now at Zooks chassis mods. Couple of things have crossed my mind. The lower strenthening between the sub frame and main frame looks spot on, but I'm wondering if it is needed at the top of the sub frame. The stock construction here looks very similar in strength to my KX250 and sons CR85. The other area I'm wondering about is the strenghtening to the shock tower. Has anyone had any problems with the shock tower moving .. this looks pretty strong in std form and I'm not sure that the butterflies would do a lot if this there were forces around sufficient to move the tubular tower.
The strenthening around the lower linkage and tabs looks very good. Am I right in thinking that this is the main area that the frame craps out? Have there been any reports of frame failure in other areas?
The strenthening around the lower linkage and tabs looks very good. Am I right in thinking that this is the main area that the frame craps out? Have there been any reports of frame failure in other areas?
Posted 25 October 2007 - 04:59 PM
the tabs are the biggest concern. The guy that did the welding said that the rest would just make the bike more rigid. And it did, you can feel it. He also said he worked on a TTR that snapped the shock tower...
Posted 25 October 2007 - 08:47 PM
i like the idea. its a good one. but those welds dont look to nice.
Posted 26 October 2007 - 08:55 AM
??? i thought they were great, i may be the resolution of mmy 8 year old digital camera!
Posted 26 October 2007 - 09:34 AM
hey rockycrawler .. that is a bit harsh!! Zook has done a great job developing his bike and sharing unlimited info with us all. Best to keep this sort of forum constructive and positive. Zooks welds look fine .. I've seen much worse! ... and the vast majority are under the plastics or down by the linkage anyway.
Negative posts like that make folk hesitant about posting pics of thier mods which is to everyones disadvantage. .... I was going to post a pic of my wife but now I'm sort of not sure ....LOL!!
Thanks for all the info and advice Zook!
Negative posts like that make folk hesitant about posting pics of thier mods which is to everyones disadvantage. .... I was going to post a pic of my wife but now I'm sort of not sure ....LOL!!
Thanks for all the info and advice Zook!
Posted 26 October 2007 - 11:16 AM
beamishnz said:
hey rockycrawler .. that is a bit harsh!! Zook has done a great job developing his bike and sharing unlimited info with us all. Best to keep this sort of forum constructive and positive. Zooks welds look fine .. I've seen much worse! ... and the vast majority are under the plastics or down by the linkage anyway.
Negative posts like that make folk hesitant about posting pics of thier mods which is to everyones disadvantage. .... I was going to post a pic of my wife but now I'm sort of not sure ....LOL!!
Thanks for all the info and advice Zook!
Negative posts like that make folk hesitant about posting pics of thier mods which is to everyones disadvantage. .... I was going to post a pic of my wife but now I'm sort of not sure ....LOL!!
Thanks for all the info and advice Zook!
your welcome:thumbsup:
Posted 26 October 2007 - 08:28 PM
didnt mean for it to be harsh, i just look at welds on everything since thats what i do everyday. didnt mean to get anyone upset.
Posted 27 October 2007 - 09:49 AM
No worries .... I'm sure Zook is still sleeping well. Just a gentle nudge to remind you that there are some sensitive souls out there. 
Now we are all in positive mode perhaps I'll find that pic of the wife. LOL ... and I'll put up my weld pics for your professional scrutiny when they're done
Posted 29 October 2007 - 02:41 PM
Hey Zook .. just finishing off my templates to make up the gussets etc and was wondering if you needed to modify the BBR cradle once you thinkened up the engine mounting tabs? .. looks to me that I'll need to take 3mm of each side of the cradle mounts to accomodate the thicker tabs.
