cruising speed? - Page 2

hunter · 01-08-2007, 07:06 PM

Quote:

Originally Posted by FMYStreetRacer

i have a roketa db-07a with a zohngsten (sp?) push rod motor in it. i've been breaking it in and today was the first time i really laid into it. it moves out pretty good. still has a 17/56 gear setup but the 42 rear should be here wed. oh yeah, right now it only does about 50 screaming it's ass off. should do well over 70 with the 42 rear though. hope that info helps.

I thought that roketa had an ohc motor on it.Sorry if this is a stupid question(don't know much ab out mechanics)but i heard the ohc was better.I plan on purchasing one for xxx motorsports.Any help would be appreciated.thank you

red2003 · 01-08-2007, 07:41 PM

My Roketa DB07a (RSX200E) DOES have the OHC motor. It came with 14/45 (or 46?) sprockets. Cruises at 50 easily with plenty of throttle (but not a lot of power) left. Wind resistance becomes an issue before lack of engine speed does with the correct gearing.

Roketarider · 01-08-2007, 08:03 PM

Quote:

Originally Posted by spanks100

SO it's pretty much unanimous, 42/44/46 rear and 16/17 front is the way to go for the street?

That is what I am gathering also from the past few days.

culcune · 01-08-2007, 08:19 PM

Yes, use the Lifan GY-5 as the standard; 17 t front, 46 t rear gets those owners to 65 mph stock, 70 in a pinch...if you already have a 17 t front, you are half way there!!

FMYStreetRacer · 01-08-2007, 11:00 PM

Quote:

Originally Posted by hunter

Quote:

Originally Posted by FMYStreetRacer

i have a roketa db-07a with a zohngsten (sp?) push rod motor in it. i've been breaking it in and today was the first time i really laid into it. it moves out pretty good. still has a 17/56 gear setup but the 42 rear should be here wed. oh yeah, right now it only does about 50 screaming it's ass off. should do well over 70 with the 42 rear though. hope that info helps.

I thought that roketa had an ohc motor on it.Sorry if this is a stupid question(don't know much ab out mechanics)but i heard the ohc was better.I plan on purchasing one for xxx motorsports.Any help would be appreciated.thank you

my owners manual says it's a push rod motor. it shows parts etc and it even shows push rods. does anyone know for sure what is what? i'll post hi res pics of my engine need be. honestly though, i could care less what motor is in it, it runs good enough for me.

i'll be sure to post back how it runs with the 17/42 combo.

spanks100 · 01-09-2007, 02:10 PM

Hey Bruce and RPM, I went each of your websites. I hadn't really considered the Lifans but I think I will now. Good looking Bikes! By the way what is the seat height for those? I've seen conflicting reports. Also on the website they show drum rear brakes but I saw some on ebay with rear disk?

red2003 · 01-09-2007, 02:19 PM

The Rokets DB07A (RSX200E) IS the OHC motor. The manual does show pushrods, but there aren't any. The manual is about as accurate as the assembly instructions were, NOT!

RPM · 01-09-2007, 07:00 PM

Spanks100,

Thanks for visiting the site and for considering the Lifan bikes.

The seat height is about 33" on the GY-5 and 32" on the GY-2 model when no weight is on it. They stand a little tall for some folks, but have plenty of travel. Some minor adjustments can be made to relieve some stiffness. They will soften a bit in time, the old saying ... the more you ride, the better it runs.

Both bikes, GY-2 and the GY-5, have the inverted front shocks now and disc brakes on front and back. I never ordered any of the GY-2 bikes last year, but I believe they came with drum rear brakes and conventional shocks according to the information I got, but maybe Bruce can answer this better as he was carrying all models. These are available now pretty much the same other than plastic, different exhaust, different seat and a covered tank for the GY-2 model.

If you want to get more specs, I have them from the handouts that I get from Lifan posted in my gallery on this forum.

Hope this helps!

pacman · 01-11-2007, 05:25 PM

Hi!

Just wanted to let you know my experience with changing the sprockets. My Loncin lx200 came with 14/42 sprockets. It could barely reach 90 km/h (50 mph I think). So I changed the front sprocket to a 17 toothed one. Then I could ride it with max speed of 120km/h ! HUGE change! I have also changed the rear sprocket to 40 now.

With the 17/40 configuration it will go just under 130km/h. 8) Cruising speed is 90-100 km/h. The disadvantage is that I need to rev the engine quite a bit when I start from a standstill, or else the engine will stall. So 17/40 is an absolute maximum gearing, IMO. I need this for a lot of highway riding, and I just hate when the engine is screaming for mercy :wink:

FMYStreetRacer · 01-11-2007, 11:58 PM

i just switched my sprocket today to my 42 tooth. it rides pretty good. i think it's a bit much and i proved that tonight trying to climb a hill and stalling out. it will probly go excess of 70 mph. i have no idea cause my speedo cable is broken. i think the 46 rear would be the best. i might put a 16 front on it now.

spanks100 · 01-12-2007, 03:33 AM

Sounds good, thanks for the review!

mule3010 · 01-12-2007, 08:24 PM

I have tried the 17/46, 17/42 and 17/40. I settled on the 17/42 as the best (for me) combo I have been recomending to folks that want a 70/30 or so street and trail ride. It will run a top speed (level ground) of 74 mph per Garmin gps.
Joe

FMYStreetRacer · 01-12-2007, 09:31 PM

that's excelent. i have my 17/42 now and i think i'll be trying a 16 tooth front just to see what it's like. that should be more like a 17/45. i miss the trails a bit. i need to get my speedo working as well.

fatboy250 · 01-12-2007, 09:35 PM

Mule,
Is that with the OHC engine?

Jason

ejcycles · 01-13-2007, 10:21 AM

FMYStreetRacer
Send me a pic of your speedometer cable with the entire length. I have GY-2 & GY-5 cables in stock.

Ride Wild and Fly Like an Eagle! 8O
Bruce

01-08-2007, 08:19 PM	#19
culcune Join Date: May 2006 Location: Yuma, Arizona Posts: 9,056	Yes, use the Lifan GY-5 as the standard; 17 t front, 46 t rear gets those owners to 65 mph stock, 70 in a pinch...if you already have a 17 t front, you are half way there!! __________________ "They say that life's a carousel, spinning fast you got to ride it well..." TGB Delivery Scooter 150 TMEC 200 Enduro--carcass is sadly rotting in the backyard
	0

01-09-2007, 07:00 PM	#23
RPM Join Date: Jun 2006 Location: Grenada, MS Posts: 259	Spanks100, Thanks for visiting the site and for considering the Lifan bikes. The seat height is about 33" on the GY-5 and 32" on the GY-2 model when no weight is on it. They stand a little tall for some folks, but have plenty of travel. Some minor adjustments can be made to relieve some stiffness. They will soften a bit in time, the old saying ... the more you ride, the better it runs. Both bikes, GY-2 and the GY-5, have the inverted front shocks now and disc brakes on front and back. I never ordered any of the GY-2 bikes last year, but I believe they came with drum rear brakes and conventional shocks according to the information I got, but maybe Bruce can answer this better as he was carrying all models. These are available now pretty much the same other than plastic, different exhaust, different seat and a covered tank for the GY-2 model. If you want to get more specs, I have them from the handouts that I get from Lifan posted in my gallery on this forum. Hope this helps! __________________ RPM - REV IT UP! (REDLINE is OPTIONAL) Feel the RUSH ... it gets better all the time!
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01-12-2007, 09:35 PM	#29
fatboy250 Join Date: Sep 2006 Location: COLUMBIA, SC Posts: 973	Mule, Is that with the OHC engine? Jason __________________ 2008 Jonway MC-70-150 2007 Roketa DB-07B (RSM-200E) 2006 Roketa DB-07A (RSX-200E) 1995 Kawasaki Concours (ZG1000)
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01-13-2007, 10:21 AM	#30
ejcycles Join Date: Oct 2006 Location: 11481 State Route 44 Mantua, Ohio 44255 Posts: 1,112	FMYStreetRacer Send me a pic of your speedometer cable with the entire length. I have GY-2 & GY-5 cables in stock. Ride Wild and Fly Like an Eagle! 8O Bruce __________________ Thanks, Bruce @ Endless Journey Cycles "Phone Calls Only" ~330-274-0098~ Hours: Tue.-Fri. 10:00-6:00 Sat. 10:00-4:00 EST. Dealer for: Lifan, Crossrunner ATVs. http://www.endlessjourneycycles.net
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01-08-2007, 07:41 PM	#17
red2003 Join Date: Jan 2007 Location: Northern Vermont, USA Posts: 1,271	My Roketa DB07a (RSX200E) DOES have the OHC motor. It came with 14/45 (or 46?) sprockets. Cruises at 50 easily with plenty of throttle (but not a lot of power) left. Wind resistance becomes an issue before lack of engine speed does with the correct gearing.
	0

01-09-2007, 02:10 PM	#21
spanks100 Join Date: Jan 2007 Location: Heidelberg, Germany Posts: 45	Hey Bruce and RPM, I went each of your websites. I hadn't really considered the Lifans but I think I will now. Good looking Bikes! By the way what is the seat height for those? I've seen conflicting reports. Also on the website they show drum rear brakes but I saw some on ebay with rear disk?
	0

01-09-2007, 02:19 PM	#22
red2003 Join Date: Jan 2007 Location: Northern Vermont, USA Posts: 1,271	The Rokets DB07A (RSX200E) IS the OHC motor. The manual does show pushrods, but there aren't any. The manual is about as accurate as the assembly instructions were, NOT!
	0

01-11-2007, 05:25 PM	#24
pacman Join Date: Jan 2007 Posts: 36	Hi! Just wanted to let you know my experience with changing the sprockets. My Loncin lx200 came with 14/42 sprockets. It could barely reach 90 km/h (50 mph I think). So I changed the front sprocket to a 17 toothed one. Then I could ride it with max speed of 120km/h ! HUGE change! I have also changed the rear sprocket to 40 now. With the 17/40 configuration it will go just under 130km/h. 8) Cruising speed is 90-100 km/h. The disadvantage is that I need to rev the engine quite a bit when I start from a standstill, or else the engine will stall. So 17/40 is an absolute maximum gearing, IMO. I need this for a lot of highway riding, and I just hate when the engine is screaming for mercy :wink:
	0

01-11-2007, 11:58 PM	#25
FMYStreetRacer Join Date: Nov 2006 Location: Ft. Myers, Fl. Posts: 416	i just switched my sprocket today to my 42 tooth. it rides pretty good. i think it's a bit much and i proved that tonight trying to climb a hill and stalling out. it will probly go excess of 70 mph. i have no idea cause my speedo cable is broken. i think the 46 rear would be the best. i might put a 16 front on it now.
	0

01-12-2007, 03:33 AM	#26
spanks100 Join Date: Jan 2007 Location: Heidelberg, Germany Posts: 45	Sounds good, thanks for the review!
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01-12-2007, 08:24 PM	#27
mule3010 Join Date: Oct 2006 Location: Louisville, KY. Posts: 85	I have tried the 17/46, 17/42 and 17/40. I settled on the 17/42 as the best (for me) combo I have been recomending to folks that want a 70/30 or so street and trail ride. It will run a top speed (level ground) of 74 mph per Garmin gps. Joe
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01-12-2007, 09:31 PM	#28
FMYStreetRacer Join Date: Nov 2006 Location: Ft. Myers, Fl. Posts: 416	that's excelent. i have my 17/42 now and i think i'll be trying a 16 tooth front just to see what it's like. that should be more like a 17/45. i miss the trails a bit. i need to get my speedo working as well.
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