Derbi-forum.nl

Hi. my name is Mladen, comming from croatia, and I need to ask you for some things.

sitation is like this.

some parts like connection rod for derbi senda gpr 50, you cant buy in croatia, you can just order this part in shop.
But, i need this part for tomos, for other bike, and I know just dimenzions of thiss part,but they ask me from which derbi it is. i dont know.

ok. i need conrod off this dimensions

lenght of center to center is 90mm,
down is pin 16mm. up is pin 12 mm

thic con rod must be better than my standard on tomos, this is bike off 6 horse power at 8200 rpm, and con rod cannot going over 5000 KM. quality is problem on standard. but i now havee tuning like 12 hp on 12 000 rpm. i need con rod who can do it

this is picture offco rod this dimenzions( i am sorry i not talking english very vell )



wrom which model of derbi it is? i need a age off bike and model. all info of this bike to I can order a part.

Thanks

I'm affraid none of us can help you, your question is pretty complicated and I actually don't realy understand a shit of it. Do you need informatie about stuff for your Tomos
or Derbi? The thing on de picture, is that part of a crankshaft or something?

That part on the picture is a connecting rod(drijfstang)
Also the small end and the big end bearing

I don't know of it wil fit in your tomos crankshaft.

ok. I am sorry, question is. from which derbi is this conrod? on the site off martijin stehouver this conrod is from somederbi senda gpr 50. but it is not wtitted from which model ist this. i need have fuul name of bike to I can order a this conrod. It is not important for what I need this, but I write this, it is same con rod like for tomos , same dimensions. but quality is much better.

again.
i need know a full name of this bike from which is this con rod. they says to exsist a few models of this bike...
question is clear now isnt it?

Derbi has two types of engines, Old Type (OT) and New Type (NT). You need to know from what year the Derbi GPR 50 is. Every GPR 50 that has been produced before 2006 has an Old Type engine, from 2006 Derbi have used the New Type engine. When you know the year, you're able to order the right conrod.

do you know dimensions for OT and NT engine of gpr 50? i need to know from which year is this dimensions

I don't think it is from a Derbi because a Derbi has a 18mm Big-end if i'm right. A Derbi OT has a 90mm conrod (center to center), a 18mm big-end and a 12mm small-end.

NT?

http://www.emot.nl/webwinkel/index.php? ... ductId=323 ?

Corect, that is it. , I was ask martijin to send me. but he is not give answer to me.
.does somebody from this forum wont to buy this conrod and sent in slovenia? i have a frend here , i will give a monney to him to pay this

kaskader schreef:Corect, that is it. , I was ask martijin to send me. but he is not give answer to me.
.does somebody from this forum wont to buy this conrod and sent in slovenia? i have a frend here , i will give a monney to him to pay this

I think nobody would do this, because nobody knows you.. even a dutch man who I dont know, i would borrow him money. so you must regulate something else I think..

ok. today I will order this , can I tell it is from NT engine? which bike have this dimensions? which derbi?