This is the man! if it can be done to a schwinn he has s done it! precision parts made for the choppers => the jackshaft 3 speed one my favorites. - D. Winkerson
TRANSMISSION = the mechanism by which POWER is transmitted
from an ENGINE to the WHEELS
of a motorized vehicle.
A FEW of the many BENEFITS OF OUR 3 SPEED TRANSMISSION SYSTEM / KIT
* GREATLY REDUCES VIBRATION
* SHIFTS WITH A SIMPLE 'CLICK' OF SHIFTER
* Can ADD Up To 20+mph TO YOUR TOP END!
FIRST GEAR - In 1st gear, throttle up to around 15 mph or so then, remove hand from throttle and simply click stick shift forward into...
SECOND GEAR - Operates very close to the same gear ratio of our standard Motorized Stingray Kit with a 40 Tooth [single speed] Rear Drive gear... "Rev"/ the throttle up to around 30 mph in 2nd then, reach back and drop it into 3rd! CLUTCH IS NOT USED IN SHIFTING w/ this system.
THIRD GEAR = OVERDRIVE! - 3rd gear is 133% of 2nd gear which is a 33% increase of your TOP END! This means you can cruise = fast & smooth with the engine running at lower rpms!
NOTE: The transmission system does not allow for 'Bump starting' [pedaling then, drop the clutch to start it] does not work with this transmission system. Watch video "kickstarting is very easy to do => see video below... or, I USUALLY do the ROLLING START.
ROLLING START : We have a technique for pedal starting your bike after trans system was installed. Pedal bike in 3rd, stop pedaling (drop ) shifter into first - then release clutch lever and
"KICK" to start - while "ROLLING"... simple, easy.
NEW - now offering ES model Grubee motors which allow for drill start w/ 20volt portable drill
MOCK-UP of our Transmission System shown in the photo [ABOVE] with MOTOR & MOUNTS. However, Transmission "kit" listed below does not include motor or motor mounts [they are sold seperately].
IDENTIFY THESE ITEMS IN PHOTO ABOVE...
1.) STINGRAY SPECIFIC JACKSHAFT 'COMPONENT' -The Motor Drives LEFT SIDE gear on jackshaft which turns the shaft & gears on the right side.
The INSIDE RIGHT gear drives the 3 speed REAR Hub...
The outside gear RIGHT SIDE is a freewheel connected to the bicycle crank.
Our Transmission gives you (both) a THREE (3) speed bicycle and when you release the clutch, a THREE (3) speed motorized PedalChopper!
2.) PRECISION MACHINED STINGRAY SPECIFIC MOTOR MOUNT. Chain Alignment is everything on a "Kit" like this. Our Stingray Specific Motor Mount is not included in this transmission "kit" - it is sold seperately. OUR 'Jackshaft Component' is designed to line up perfectly with our Machined Mount. However, if you plan to keep your existing [OFFSET] mount - I always send additional spacer/washers to allow you to achieve proper motor chain/gear alignment.
3.) STOCK CRANK HAS TO BE REPLACED - Choose Black or Silver Chain Ring and Black or Silver Crank arm set. Cranks are Aluminum Alloy - they will not rust. It is necessary to offset the Bicycle Sprocket to use this system. A Crank removal tool is included with kit. STOCK Chainguard can be retro-fitted using spacers - if wanted. I typically engineer a chainguard from flexible alum. stock from hardware store [see photo top right - black & silver bike].
4.) YOUR CHOICE; HANDLEBAR MOUNTED "THUMB" SHIFTER...
or 3 SPEED "SUICIDE" SHIFTER / INDEXER / Machined CNC MOUNT.
4.) REAR HUB - 3 SPEED SUPER WIDE - STURMEY ARCHER HUB.
5.) HAND BUILT 20 X 4.25 WHEEL. - Your Choice Black or Silver Rim... Black or Silver Spokes.
6.) REAR BRAKE - Complete Disc Brake System including our [NO WELD] caliper mount. And a Specially Engineered "splitter" Brake Cable allows incorporation of stock "V" brake. REAR "V" Brake w/NEW Brake Shoes also included with Kit.
7.) CLUTCH ACTUATOR COVER & DRIVE CHAIN TENSIONER - Optional, basically prevents you from ever having to move the motor forward to compensate for eventual stretching of drive chain. Tensioner does not seem to be needed on OCC builds as chain is short and stretches little..
* Our 3 SPEED TRANSMISSION "KITs" are designed specifically for the Stock OCC Style Schwinn Stingrays and Schwinn Stingray Spoiler and not compatible with standard style bicycles.
NOTE: Kit does not include MOTOR MOUNT OR MOTOR these can be purchased seperately.
PLEASE INCLUDE [your] PHONE NUMBER WHEN COMPLETING ORDER OR EMAIL your phone number to me at: Sales@PedalChopper.com ...as I want to talk to you to confirm a few things, before I build/prepare your kit.
TRANSMISSION SYSTEM / KIT Includes:
* STEP BY STEP Installation INSTRUCTIONS with PHOTOS.
* Stingray Specific JACKSHAFT and MACHINED HOUSING w/
shaft bearings. Assembled and ready for quick & easy installation.
* Proper GEAR Ratios HAVE BEEN CALCULATED and ALL 3 GEARS Pre-Installed
* [BOTH] RIGHT SIDE CHAINS PRE-CUT to estimated proper lengths
and master links as needed. You should be able to use your MOTOR "kit" chain for motor
side chain. If not... We can discuss what is needed.
* Complete NEW - ALLOY CRANK SET - we will discuss what colors you will want
for YOUR crank arms and chain ring [Black or Silver].
* Crank REMOVAL Tool included to remove stock crank arms.
* CHOOSE: HANDLEBAR MOUNTED THUMB SHIFTER or....
Aftermarket / Aluminum fitted Stickshift Mount & Stick Shifter.
* Hand Built / NEW 20 x 4.25 Rear wheel [tire not included] with
Sturmey Archer 3 Speed SUPER WIDE Hub Laced in.
Also, your choice of rim and spoke color [black or silver]
* REAR BRAKE[s] Complete Rear disc Brake set-up and... a Brand NEW Original
Rear brake Caliper set [original stingray] Including: specially engineered 'splitter'
brake cable - to allow both rear brakes to operate from 1 cable... And Special
NO WELD disc caliper mount for rear dis installation on stock stingray.
* PARK - PROFESSIONAL CHAIN TOOL
* TRI-FLO Freewheel Lube.
* Additional HUB Parts [selector chain, anchor eyebolt, shift cable].
* Personal One on One Tech support as needed.
DISCLAIMER - This kit will be ready to install. However, you will need to have mechanical skills & proper tools. 3 Sp. RR. Hub & Freewheel are designed for a standard bicycle - so no warranty is offered. [If either fail within 90 days of purchase we will replace for you at our flat cost].
WARNING : RIDE AT YOUR OWN RISK! Although we have not experienced it in our testing... Catastrophic Failure of any of these components at high speed could potentially result in injury to rider. By purchasing this product you assume this liability and hold PedalChopper harmless of any responsibility for injuries.
It is possible to use our component to send the chain over to right side and run on your stock [single speed wheel] Our Jackshaft component is Schwinn Stingray & Spoiler "specific" as it is designed to mount firmly onto the [unique] oval shaped Lower Frame Tubes of these bicycles. Depending on how you engineer your project - you will likely also need to replace your crank set with our "offset" cranks for operation & alignment of the 2 right side chains. [see 2nd photo] offset Crank set sold WITH Larger optioned kit [DROP DOWN BOX].