Shprokitz

[David Beard]

Adding teeth to the back will have the same effect as dropping them from 
the front, only not as much of an effect per tooth. I ran a 16/48 
combination on mine with no ill effects (don't ask me where I got the 48 
tooth rear as I can't remember that long ago). Definitely helped low end 
grunt, but also increased highway rpm to a point that was slightly 
annoying for me. Also will have a slightly negative impact on your gas 
mileage, but doubt that's a major concern for you if you are looking for 
a "wheelie machine".

Frankly, if you are looking for a stunt bike, you might want to look 
elsewhere. Even with the sprocket changes, the GPZ will never be a 
wheelie machine. Yeah, you can pop them if you want, but the bike is too 
heavy and the wheel base is too long to be much of anything but a nice 
sport touring motorcycle (IMHO).

Dave B



Jonathon Jay wrote:
> Doing my best for a Mike Meyers...
>
> Hey, the online sprocket calculator still is kaputz, and I need to be ordering a set today or so.
>
>  
>
> Maybe I can get some group input. 
>
>  
>
> Say what you will, but I want ALL my power off idle. I understand dropping to a 16t on the front will get me closer to the wheelie monster I want to be.
>
> What effect does adding a few teeth to the rear do? Shift torque down in the rpm range, adding to the wheelie effect, or does adding teeth to the rear decrease hiway rpm?
>
> I was thinking of also adding 2 to the back. I'd now turn it from a 17/45 to a 16/47. What are the thoughts on a 16/50? What will this do to off idle and freeway rpm?
>
> Regards- 
>
> J
>
> What's The Difference Between Ignorance And Apathy?
> ~ I Don't Know And I Don't Care ~
>
>
>
>  
>   
>> From: spauldingd at hotmail.com
>> To: gpzlist at micapeak.com
>> Subject: Re: Throttle return issue?
>> Date: Mon, 4 May 2009 22:37:39 -0500
>>
>> The product I was referring to is Bike Aid by Dri-Slide. It's a graphite 
>> based product and looks like this:
>> http://aebike.com/page.cfm?action=details&PageID=30&SKU=LU5002
>>
>> Dave in Des Moines
>>
>> --------------------------------------------------
>> From: "Dave Spaulding" <spauldingd at hotmail.com>
>> Sent: Monday, May 04, 2009 7:46 AM
>> To: "Guy Ramsey" <ramsey.gc at hotmail.com>; <gpzlist at micapeak.com>
>> Subject: Re: Throttle return issue?
>>
>>     
>>> Mine did that and it the recommendation I got was to go to a bicycle shop 
>>> and get a bottle of this teflon-based cable lubricant. It works wonders! 
>>> It comes in a small black bottle (maybe 6 ounces) with a metal tube 
>>> applicator. It was 6 or 7 bucks as I recall. I can't remember the name 
>>> of the product, but I can look tonight. All I did was open up the 
>>> throttle housing and free the cable end enough to get the metal applicator 
>>> in there (its almost like a needle) and squirt the stuff in there until it 
>>> ran out near the carbs. Silky smooth.
>>>
>>> Dave in Des Moines
>>>
>>>
>>> ----- Original Message ----- 
>>> From: "Guy Ramsey" <ramsey.gc at hotmail.com>
>>> To: <gpzlist at micapeak.com>
>>> Sent: Sunday, May 03, 2009 11:21 PM
>>> Subject: Throttle return issue?
>>>
>>>
>>> I've been having a problem with my throttle return. It tends to hang up 
>>> for a second before returning to the idle position. I looked that the 
>>> microfiche on bikebandit.com and couldn't figure out which spring was the 
>>> return spring on the carbs. Anyone replace this before and have a part 
>>> number? I suppose it's possible I'm looking in the wrong place to solve 
>>> the problem too... Has anyone had a sticky throttle and what they did to 
>>> fix it?
>>>
>>>
>>>       
>
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