Haven't a clue

busterdog · 10-14-2014, 11:32 PM

well, here it goes...i just bought a 2006 roketa this weekend and have little knowledge of chinese bikes. the bike only has 4023km on the odometer, starts right up, drives through all gears and stops correctly, minus the speedo cable buzzing . got it on the lift and cleaned carb jets, removed rear shock because the line to the can was split and noticed the brake disk was shaped like a contact lens. is this normal? i wouldnt think so.anybody know where to get a new one? it has six bolts attaching it to the wheel hub and seems pretty thin. any info about this bike would be appreciated and have had no luck finding this particular piece. anything interchangeable between this one and any others? i want to know all i can about this bike, thanks in advance for your help
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Weldangrind · 10-14-2014, 11:47 PM

Start by searching eBay with generic terms, like "dirt bike disc" or "dirt bike rotor". Remember that the people who write the descriptions likely have little knowledge of the product, so the descriptions won't be typical.

No, it's not normal to have a concave rotor. I'm very curious to see it.

SpudRider · 10-15-2014, 01:38 AM

Welcome; we are glad you joined us.

It seems you own a Roketa DB-05H.

http://roketa.com/product/product_de...=0&proID=54043

I can't find any information regarding the rear brake rotor, but I suggest you contact the people at Roketa.com, and ask them.

http://roketa.com/information/6.shtml

busterdog · 10-15-2014, 01:52 AM

thanks for the responses! after surfin the web the past couple hours that is what i have concluded,DB-05h. roketapartsonline had a breakdown of assemblies of a DB_06 which is almost exact, the plastics and headlight differ but the frame, engine, and swing arm assy are a match so i ordered a new brake disc for a staggering 90 bucks shipped! almost a third of what i paid for the bike! but whats a little safety worth right? dont know the bolt pattern but checked ebay relentlessly for one to no avail so i figured id try this sketchy lookin site for the heck of it, maybe ill be pleasantly surprised! thanks guys, ill be hangin around here for more advice! Happy motoring!

humanbeing · 10-15-2014, 06:18 AM

Measurement(s) & pic(s) are more important than brand/ model.
Generic 22cm REAR

---
Others: http://shop58266407.taobao.com/searc...urceId=tb.item

busterdog · 10-15-2014, 11:35 AM

that one is close but mine has 6 bolts that attach it to the rim. if i receive the one i ordered, i should be in good shape, if not ill fabricate one of my own. thanks again for your help guys! i appreciate it!

busterdog · 10-19-2014, 10:36 PM

finally got a couple pics. i think this may have been caused by excessive braking for too long a duration resulting in the disc getting hot enough to change shape. cant see it taking much more than that as it is only 3mm thick...

Weldangrind · 10-20-2014, 12:34 AM

I bet the caliper was sticking due to too much brake fluid. It was severely overheated.

busterdog · 10-20-2014, 01:55 PM

didnt feel like it was sticking, the brake pads werent even touching the disc at standstill without brake pressure applied, there was at least a 2mm gap on both sides of the disc, the back wheel spun freely with no resistance except chain tension (which was overly slack btw)

Weldangrind · 10-20-2014, 03:19 PM

I meant at some point in the past. Whomever had the bike before you might then have removed some of the fluid, but the damage was already done.

busterdog · 10-23-2014, 12:12 PM

well just an update on the "sketchy looking" site i ordered from, roketapartsdept.com. well the products are way over-priced but the brake disc i ordered couldnt be found(by myself, anyway) anywhere else so i paid 89 and some change including shipping. took 2 days to debit my accout and another 5 to recieve. the part is correct and its here undamaged so im happy. some people may be put off for the length but i was overall pleased, except for the price. but i may order from them again to have the "original to the bike"
parts

SpudRider · 10-23-2014, 12:27 PM

Thanks for the update. I'm glad you found a suitable brake rotor.

Weldangrind · 10-23-2014, 11:58 PM

Good plan. You'll have reliable brakes.

10-14-2014, 11:32 PM	#1
busterdog Join Date: Oct 2014 Posts: 10	Haven't a clue well, here it goes...i just bought a 2006 roketa this weekend and have little knowledge of chinese bikes. the bike only has 4023km on the odometer, starts right up, drives through all gears and stops correctly, minus the speedo cable buzzing . got it on the lift and cleaned carb jets, removed rear shock because the line to the can was split and noticed the brake disk was shaped like a contact lens. is this normal? i wouldnt think so.anybody know where to get a new one? it has six bolts attaching it to the wheel hub and seems pretty thin. any info about this bike would be appreciated and have had no luck finding this particular piece. anything interchangeable between this one and any others? i want to know all i can about this bike, thanks in advance for your help
	0

10-14-2014, 11:47 PM	#2
Weldangrind Join Date: Mar 2009 Location: Sardis, BC, Canada Posts: 25,977	Start by searching eBay with generic terms, like "dirt bike disc" or "dirt bike rotor". Remember that the people who write the descriptions likely have little knowledge of the product, so the descriptions won't be typical. No, it's not normal to have a concave rotor. I'm very curious to see it. __________________ Weldangrind "I figure I'm well-prepared for coping with a bike that comes from the factory with unresolved issues and that rewards the self-reliant owner." - Buccaneer
	0

10-15-2014, 01:38 AM	#3
SpudRider Join Date: Jul 2008 Location: Idaho Posts: 25,054	Welcome; we are glad you joined us. It seems you own a Roketa DB-05H. http://roketa.com/product/product_de...=0&proID=54043 I can't find any information regarding the rear brake rotor, but I suggest you contact the people at Roketa.com, and ask them. http://roketa.com/information/6.shtml __________________ Spud "Never argue with an idiot. He will drag you down to his level, and beat you with experience." Mark Twain 2015 Zongshen ZS250GY-3 (RX3) 2006 Zongshen ZS200GY-2 (Sierra 200) 2005 Honda XR650L 2004 Honda CRF250X 1998 Kawasaki KDX220 Mods made to my Zongshen ZS200GY-2: http://www.chinariders.net/showthread.php?t=6894
	0

10-15-2014, 06:18 AM	#5
humanbeing Join Date: Mar 2008 Posts: 2,436	Measurement(s) & pic(s) are more important than brand/ model. Generic 22cm REAR --- Others: http://shop58266407.taobao.com/searc...urceId=tb.item __________________
	0

10-20-2014, 12:34 AM	#8
Weldangrind Join Date: Mar 2009 Location: Sardis, BC, Canada Posts: 25,977	I bet the caliper was sticking due to too much brake fluid. It was severely overheated. __________________ Weldangrind "I figure I'm well-prepared for coping with a bike that comes from the factory with unresolved issues and that rewards the self-reliant owner." - Buccaneer
	0

10-15-2014, 01:52 AM	#4
busterdog Join Date: Oct 2014 Posts: 10	thanks for the responses! after surfin the web the past couple hours that is what i have concluded,DB-05h. roketapartsonline had a breakdown of assemblies of a DB_06 which is almost exact, the plastics and headlight differ but the frame, engine, and swing arm assy are a match so i ordered a new brake disc for a staggering 90 bucks shipped! almost a third of what i paid for the bike! but whats a little safety worth right? dont know the bolt pattern but checked ebay relentlessly for one to no avail so i figured id try this sketchy lookin site for the heck of it, maybe ill be pleasantly surprised! thanks guys, ill be hangin around here for more advice! Happy motoring!
	0

10-15-2014, 11:35 AM	#6
busterdog Join Date: Oct 2014 Posts: 10	that one is close but mine has 6 bolts that attach it to the rim. if i receive the one i ordered, i should be in good shape, if not ill fabricate one of my own. thanks again for your help guys! i appreciate it!
	0

10-20-2014, 01:55 PM	#9
busterdog Join Date: Oct 2014 Posts: 10	didnt feel like it was sticking, the brake pads werent even touching the disc at standstill without brake pressure applied, there was at least a 2mm gap on both sides of the disc, the back wheel spun freely with no resistance except chain tension (which was overly slack btw)
	0

10-20-2014, 03:19 PM	#10
Weldangrind Join Date: Mar 2009 Location: Sardis, BC, Canada Posts: 25,977	I meant at some point in the past. Whomever had the bike before you might then have removed some of the fluid, but the damage was already done. __________________ Weldangrind "I figure I'm well-prepared for coping with a bike that comes from the factory with unresolved issues and that rewards the self-reliant owner." - Buccaneer
	0

10-23-2014, 12:12 PM	#11
busterdog Join Date: Oct 2014 Posts: 10	well just an update on the "sketchy looking" site i ordered from, roketapartsdept.com. well the products are way over-priced but the brake disc i ordered couldnt be found(by myself, anyway) anywhere else so i paid 89 and some change including shipping. took 2 days to debit my accout and another 5 to recieve. the part is correct and its here undamaged so im happy. some people may be put off for the length but i was overall pleased, except for the price. but i may order from them again to have the "original to the bike" parts
	0

10-23-2014, 12:27 PM	#12
SpudRider Join Date: Jul 2008 Location: Idaho Posts: 25,054	Thanks for the update. I'm glad you found a suitable brake rotor. __________________ Spud "Never argue with an idiot. He will drag you down to his level, and beat you with experience." Mark Twain 2015 Zongshen ZS250GY-3 (RX3) 2006 Zongshen ZS200GY-2 (Sierra 200) 2005 Honda XR650L 2004 Honda CRF250X 1998 Kawasaki KDX220 Mods made to my Zongshen ZS200GY-2: http://www.chinariders.net/showthread.php?t=6894
	0

10-23-2014, 11:58 PM	#13
Weldangrind Join Date: Mar 2009 Location: Sardis, BC, Canada Posts: 25,977	Good plan. You'll have reliable brakes. __________________ Weldangrind "I figure I'm well-prepared for coping with a bike that comes from the factory with unresolved issues and that rewards the self-reliant owner." - Buccaneer
	0