Raven KTM50 Stingray Cafe Racer Bobber FOR SALE

GoldenMotor.com

16v4nrbrgr

Active Member
Mar 17, 2012
1,728
4
38
North Bay
Hello Motorbicycling,

Please only respond if you are serious, and try not to pick apart my build too much please. :D

Some of you may have seen this bike I've built over the past year or so;
http://motorbicycling.com/showthread.php?t=42405




I'll post up some most recent pictures after performing the preparation for sale, I really want to take a bunch of shots anyways because I'm going to miss this bike dearly. Nothing much has changed, except for a reinforced exhaust bracket, and I might peel off some worn stickers. All the graphics are vinyl race car decals, so you can peel them off and do as you wish with the finish, currently the bike has a decent black paint job with no major flaws.

I'm looking to move onto new builds, as well as free up storage room. It pains me to sell this bike because its my first motorbike, and I've poured toms of work into it to make it just as I wanted. I can't justify having so many motorbikes and can't move forward until I gain some working space and have some cash for the new builds so I gotta say goodbye, and hopefully find a new owner who's local and will cherish the bike as much as I do.

Here's a list of specs:

Engine

-Martin & Slater KTM50 Sr. Adventure 9 HP clone engine (currently at 12.5 Hrs running time)
*Cylinder head lapped and swirl polished
*note, one fin on cylinder head cracked and bolted in place, thermal mass is still there and it works as intended, but I can purchase and install a new cylinder head for the new buyer if desired, and lap and swirl polish it to match the performance of the current one. I intended to replace it eventually for aesthetics if I kept the bike, and I'll absorb the cost of the new head for the new buyer. The current bolted fin setup allowed me to use a meat thermometer to monitor head temperatures during the initial A/F tuning, because I was free to attach stuff to it since its not perfect externally.
*NGK-R Plug, Mercedes ultra low resistance silver/copper stranded plug wire and boot
*3 Shoe clutch sorted and tuned, doesn't make much dust at all, stays clean in the puck spring cavities, always consistent and reliable and grabs strong with one takeoff pump of the pedals or a push off. The way I have it geared the clutch does very little slipping so I bet it would last 5000 miles easy if used as a street bike. I'm really amazed at how proper dirtbike gearing makes the bike really come alive and accelerate like a motorcycle.
*Including coil type clutch springs, I bought them and never used them because the spring washer stack has worked so flawlessly. They are advertised as an option for lower clutch pickup, so if you would like to cruise flats and moderate hills with a lower stall speed to reduce noise, they are an option. Right now it's set up to not slip when climbing the steepest grades you can throw at the bike for extended periods, because excessively slipping clutch can cause thermal runaway. I have to climb 800-900 ft inclines at 25-30% grades, and the bike will do it no problem at the slowest going about 20 mph.
*KTM50 Sr Adventure expansion chamber to modified long poo silencer pipe with stainless packing. If you're cruising around at 25-30 mph the noise isn't so loud, its actually pretty mellow. Crack the throttle and it's 50cc GP time!
*Custom fabricated low profile rear exhaust bracket
*UNI foam air filter
*Broken in at 50:1 Ryobi/Lucas oil blend for ~2 Hrs, then run at 40:1 Lucas premix from then on, always run on 91 octane.
*Transmission filled with 250mL Redline D4 ATF, I highly recommend this oil for the wet clutch, I've ridden preety hard a lot, and the clutch still looks like brand new when I set it up and the oil stays clean, no puck clay at the bottom of the case or in the clutch springs.

Chassis & Brakes

-Custom fabricated engine cradle
-Custom fabricated brake master cylinder bracket
-Frame clearanced and reinforced at engine exhaust outlet and heat shielded
-Frame clearanced and reinforced at multiple areas required for the large rear sprocket and in anticipation of the 9 HP engine, and lots of fast riding. I reinforced the rear triangle as well as the seatpost to prevent fatigue cracking from high speed riding.
-NOS Suzuki K10 Forks, filled with Mobil 1 15W-50 - rides smooth as silk even at high speed, Headset greased with Mobil 1 red moly
-Honda Grimeca front drum brake motorcycle magnesium alloy wheel with drum brake hooked to clutch lever (lockable front brake with padlock if pin removed), drum brake pads still almost new since most braking done with the hydraulics. The Drum can be used for additional panic stopping power, in case somebody decides to cut you off.
-Rear wheel modified with hub mounts for large 80t sprocket and CRF50 rotor (will be set up as floating rotor for new buyer to resolve an issue I had with rotor offset to caliper), greased with Mobil 1 Synthetic red moly automotive wheel bearing grease.
-CRF50 front and rear scalloped brake rotors, Hydraulic front and rear brake systems. Front is lever actuated by right brake lever, rear is actuated by Yamaha R6 brake lever to horizontal master. Rear has stainless braided line, front is black rubber which matches the forks and prevents you from grabbing a handful of "over the handlebars", the brakes are absolutely incredible!
-Bottom Bracket relocated to the normal spot so you can pedal easily by welding in new bottom bracket into seat post/bottom tube intersection with reinforcement to handle 9 HP and vigorous pedal sprinting.
-Cruising pegs with rubber grips at standard bottom bracket location
-Both front and rear tires are 4.25 x 20 Innova Fat Cats with new Schwinn Stingray tubes with special ATV slime, balanced even at 60 mph.
-Suspension seatpost adapted to chopper seat to take the nutshots out of pothole hits, this and the front fork and fat tires amke this bike ride truly like a Mercedes-Benz, nothing phases its composure or comfort.
-Tank cover and fairing plastics, and Polini tail cone all custom fitted for the racer look without all the weight. All plastics are quickly removable for service.
-Custom brushed aluminum fuel tank straps
-Custom brushed aluminum gas tank filler neck bezel
-Custom fuel cap from rad cap, got rid of the endless spinning failure of the stock cap. Ventilated quite a bit so the tank never generates vacuum when accelerating hard, which can cause starvation. The in-tank filter was also removed and a large clear external filter fitted for flow assurance.
-Mercedes and AMG Badges, lol it's the Merc of motorbikes! I used one for a mount for the ignition KEY, yes you can immobilize the bike by removing the key, and it also serves as a redundant kill switch and headlight switch selector.
-Motorcycle 13K Chrome analog tachometer (needs to be wired up)
-Digital tach/hour meter
-European cafe motorcycle headlight
-Front windscreen GP style fairing for keeping that visor clean and riding at high speed sitting fully upright, yes aerodynamics work :D
-Chrome lightweight motorcycle mirrors
-Italian chrome kill/turn/light switch, wired up to bicycle turn signal kit. Hydraulic front brake lever actuates bright red taillight.
-All hardware either 8.8 KPa + grade or stainless for safety.
-Bell saddle bag
-Cable driven Krate style speedometer
-6v AGM battery for headlight with charging plug


Drivetrain

-Rebel Gears 80t Hardcoated aircraft alloy rear sprocket (this allows the bike to accelerate properly, climb any hill, and preserve the clutch because it doesn't do much slipping away power into dust and heat.
-SBP ultra wide crank axle with 3 speed freewheel pedal crank - the option of a hybrid exists with this by simply 410 chaining an electric motor to the pedal sprocket, something I was pondering since there's room for an electric motor and 24v worth of batts under the frame.
-4" crank arms so you never dig a pedal around any corner, at any possible lean angle, the pedal gearing is such that you have sufficient leverage to take off or pedal uphill even with the short crank arms, which also allow the redundant pegs for cruising normally.
-KMC nickel plated 415H engine drive chain, the only chain you'll ever need if cleaned and oiled periodically.
-KMC nickel plated pedal side singe speed chain, again, a lifetime chain.
-Pirate Cycle tensioner sprocket, solidly mounted to welded frame bracket.
-Chain tension tweakers

The bike is registered and plated, so you don't have to worry about that. I will be preparing the bike to be ridden without any initial servicing by the new owner, everything will be ready to go.

No flakes, Nigerian Princes, money orders, long distance shipping without verified pre-payment, NO BS PLEASE. I know it's a nice bike, and I will need good luck for the sale in this economy, so you can save the GLWS's so this thread stays somewhat organized please.

Ideally I'd like to sell this locally and hopefully make a new friend to ride with, I stand by my fabrication and service on this build and would be willing to help out a new friend with servicing it as long as you don't abuse the offer. As stated, the bike will be ready to rock and roll, and I have spare brake pads and other stuff that's for this bike I can include with the sale. I'll also include the 44t sprocket for racing/flat terrain, the bike will do 60+ mph with that sprocket but the hill-climbing and initial takeoff isn't good for being in car traffic. Test rides only granted with a M1 or M2 cert or license, helmet, and cash in hand. You break her, you bought her.

$1250 OBO. The bike weighs about 100 lbs and I am willing to disassemble and ship for the right buyer who pays for the bike and shipping in full.
 
Last edited:

16v4nrbrgr

Active Member
Mar 17, 2012
1,728
4
38
North Bay
I picked up a new condition rear wheel to replace the one with problems, so I should be back riding for the final sale shakedown maybe tomorrow afternoon. I'm gonna miss her so much!
 

16v4nrbrgr

Active Member
Mar 17, 2012
1,728
4
38
North Bay
Thanks BBB your flathead is mighty nice too. Maybe I can get a HS49 and try some crazy gearing to try and make a quiet bike to sneak trails. I'm thinking for a cruiser I should pick a four stroke and be sensible this time, lol.

Gonna take pics tomorrow after fixing her up.
 
Last edited:

16v4nrbrgr

Active Member
Mar 17, 2012
1,728
4
38
North Bay
Just wanted to know how fast that bike is with that rear sprocket. Seems like it could run a 40 tooth with that back wheel.
I'm including a 44t that'll cruise at 60 mph, but its not good for the steep West Marin hills. This setup equates to the gearing on the KTM50 Adventure Sr.
 

maniac57

Old, Fat, and still faster than you
Oct 8, 2011
4,484
22
0
memphis Tn
Super price considering what you get.
*sighs*
If I were close enough to pick it up(and not broke from hospital bills) I'd be seriously interested.
You should not have it for long...
I would be asking $2500 for a screamer like this.
 

Crazy Horse

Dealer
Feb 20, 2009
1,153
3
36
USA
That bike is well worth $1500. If I had it, I'd grab it in a second. I know you're gonna miss her when she's gone. It's a beautiful bike.
I agree with you, bigbutterbean, He should have no problem selling his Custom Schwinn Stingray Cafe Racer KTM50 Motorized Bobber Style Bicycle.

Good Luck, Kyle and stick to your price don't let anyone beat you down on your price! I know how much time, money, blood, sweat, and the price you've paid in the physical & emotional aspect of this build!!!

Peace Crazy Horse.
 

16v4nrbrgr

Active Member
Mar 17, 2012
1,728
4
38
North Bay
Hopefully there's a taker maybe off craigslist when I get around to puttingit up this week. If I can sell this chopper it will make my summer more fun actually because I'll be free to do other builds and relax a little.

Thanks for the kind words, its gonna be hard to give this one up.
 

16v4nrbrgr

Active Member
Mar 17, 2012
1,728
4
38
North Bay
I replaced the rear wheel yesterday and took her for a ride, man I'm gonna miss this bike so much! Gonna take a final voyage to a nice place for photos and put her up on Craigslist.
 

mew905

New Member
Sep 24, 2012
647
9
0
Moose Jaw
man I'd be all over that bike, I cant believe how gorgeous it is, and at first glance it looks like a full-on motorcycle. thats the look I would want but I dont think it will be possible with a standard bike frame, but works amazingly well on a chopper style.