sef crank info

The place to discuss rides, accessories, or whatever is tangentially Spree/Elite-related

Moderator: Moderator

Post Reply
User avatar
sum-azn-kid
Elite
Elite
Posts: 333
Joined: Mon May 24, 2010 2:04 am
Location: Hawaii, Maui

sef crank info

Post by sum-azn-kid »

Im going to be going to oahu and want to know more about the sef crank.
1.is $200 a good price?
2.how cn i tell the difference between OG sef crank and copy sef crank?(pics would help alot)
3.is there a performance/quality difference between the two?
4.anything i should know about it before buying/etc
2007 SYM DD50- baby blue 72 "Daily rider"-sold
1988 Honda SB50P-on going project
zuma 125-sold
Ninja 250r-totaled
User avatar
z50r-ghost
CB900F
CB900F
Posts: 1191
Joined: Fri Sep 12, 2008 3:46 am
Location: blank

Re: sef crank info

Post by z50r-ghost »

sum-azn-kid, I am guessing you are referring to the stock stroke, longer conrod SEF crank

I paid $250 for mine, new. I have been told the copy and the OG are identical.

hope this helps, jon
.locked away in a cage my rage has got the best of me
time finds a way each day of leaving less of me behind.

>< Solitaire Unraveling ><
http://www.youtube.com/watch?v=U45NfWSX-Vk
...my life story


1990HONDANS50F
********************
User avatar
sum-azn-kid
Elite
Elite
Posts: 333
Joined: Mon May 24, 2010 2:04 am
Location: Hawaii, Maui

Re: sef crank info

Post by sum-azn-kid »

ya the stock stroke/longer conrod. so is there any difference between OG and copy? i think ill read through your build thread again for more info thanks jon
2007 SYM DD50- baby blue 72 "Daily rider"-sold
1988 Honda SB50P-on going project
zuma 125-sold
Ninja 250r-totaled
User avatar
z50r-ghost
CB900F
CB900F
Posts: 1191
Joined: Fri Sep 12, 2008 3:46 am
Location: blank

Re: sef crank info

Post by z50r-ghost »

sum-azn-kid,

-ask Bakaracer about what the differences between the OG and copy SEF is. He does not run one personally, but he knows alot about them; he is who helped me get my setup worked out.

Later man, jon
.locked away in a cage my rage has got the best of me
time finds a way each day of leaving less of me behind.

>< Solitaire Unraveling ><
http://www.youtube.com/watch?v=U45NfWSX-Vk
...my life story


1990HONDANS50F
********************
veedubh20
CB900F
CB900F
Posts: 2036
Joined: Sat Dec 31, 2005 7:00 pm
Location: Honolulu paradise island

Re: sef crank info

Post by veedubh20 »

ftw malossi crank!!
User avatar
z50r-ghost
CB900F
CB900F
Posts: 1191
Joined: Fri Sep 12, 2008 3:46 am
Location: blank

Re: sef crank info

Post by z50r-ghost »

s.e.f. crank FTW!! :2thumbs:

-j
.locked away in a cage my rage has got the best of me
time finds a way each day of leaving less of me behind.

>< Solitaire Unraveling ><
http://www.youtube.com/watch?v=U45NfWSX-Vk
...my life story


1990HONDANS50F
********************
Dakine
Elite
Elite
Posts: 388
Joined: Wed Jan 27, 2010 8:40 pm
Location: Hon,HI

Re: sef crank info

Post by Dakine »

Didn't they put mini stroke and stock stroke cranks on the sef copies? You just gotta measure em? Both fully counter weighted?
User avatar
bakaracer
CBR1000RR
CBR1000RR
Posts: 3584
Joined: Tue Jan 27, 2009 9:51 pm
Location: tacoma,wa
Contact:

Re: sef crank info

Post by bakaracer »

Dakine wrote:Didn't they put mini stroke and stock stroke cranks on the sef copies? You just gotta measure em? Both fully counter weighted?
No the sef came in stock stroke standard con rod(80mm) and long con rod(85mm) then they had the 50,51mm stroke crank
Nothing like getting stroked!
Thanks to my sponsors
Nos Energy Drinks,themopedcompany.com,nwautoevents.com,Cycle Gear
90 honda dio sp 72cc
87 elite 50 s with 86cc watercooled mini stroke
87 elite 50 race bike mhr 72cc
91 yamaha tzr 250r
User avatar
Keoni
Goped
Goped
Posts: 66
Joined: Sat Jun 07, 2008 10:19 pm
Location: Honolulu, Oahu, HI.
Contact:

Re: sef crank info

Post by Keoni »

I guess I'll be the first to say it, THERE ARE NO LONGER ANY SEF CRANKS PERIOD! SEF stopped making moped parts and now makes go-cart parts. The cranks being sold now are being peddled as SEF stuff but they aren't so you would be buying a knock off and I've seen a particular person sell "copies" of other products but that could be said about almost everything out of Taiwan.

Here is a little history on the cranks, SEF did make 2 stock stroke cranks, the SEF crank and the SEF II crank. The SEF II crank was a standard counter weight size but had a longer connecting rod and most people thought it was a mini-stroker crank, I've spent years telling people other wise but it didn't help another shop was telling people it was a mini-stroker when it wasn't (morons). The SEF II crank is supposed to give you better RPM as the angle created by the longer rod has less drag than a standard rod. Both cranks are fully counter-weighted but I preferred the standard SEF crank in about 3 of my motors. I really liked those cranks and also they are a copy of the Malossi crank.

Bottom line, if it is a new crank it is a fake and if it is a used crank don't waste $200 on it.

-Keoni
VTCycles.com for performance parts.
808BMW
Elite
Elite
Posts: 697
Joined: Thu Feb 05, 2009 12:45 am
Location: Kailua-Kona, HI

Re: sef crank info

Post by 808BMW »

Good to know, me and my friend have all been talking about these cranks lately.

Malossi also has one right(the original?), is that available nowadays?
In 2040 they say we're going away
We could never let them control
Hawaiian man, take back your hawaiian land
User avatar
sum-azn-kid
Elite
Elite
Posts: 333
Joined: Mon May 24, 2010 2:04 am
Location: Hawaii, Maui

Re: sef crank info

Post by sum-azn-kid »

thanks keaoni. well im back from oahu and didnt buy the crank haha. i called Vt cycles, and talked to somebody there, who said the same. very helpful people who ARENT always trying to sell you stuff, like some shops. :2thumbs: i found a crank from BGM it says its for the sym dd50 but im not to sure...
heres the link
http://www.scooter-center.com/scoweb/pa ... URBELWELLE
possible option for people wit dio motors?
2007 SYM DD50- baby blue 72 "Daily rider"-sold
1988 Honda SB50P-on going project
zuma 125-sold
Ninja 250r-totaled
User avatar
sum-azn-kid
Elite
Elite
Posts: 333
Joined: Mon May 24, 2010 2:04 am
Location: Hawaii, Maui

Re: sef crank info

Post by sum-azn-kid »

http://www.spi-parts.com/models/honda/d ... -sc01.html
i checked to part number adn it matchs the honda dio 2 strokes
2007 SYM DD50- baby blue 72 "Daily rider"-sold
1988 Honda SB50P-on going project
zuma 125-sold
Ninja 250r-totaled
Dakine
Elite
Elite
Posts: 388
Joined: Wed Jan 27, 2010 8:40 pm
Location: Hon,HI

Re: sef crank info

Post by Dakine »

Mahaloz for da clear up.
Post Reply