Sky hawk carb and kit worth waiting for?

About ready to order a kit for my stretch.

I've narrowed it down to either the Sky Hawk GT5 from Spooky Tooth or the F80 from That's Dax.
From what I can tell from the descriptions the differences are the Carb, the sprocket size by a couple of teeth and maybe the chain tensioner? (tank too but I won't be using the kit tank so that doesn't make any difference for me) Is that all the differences?

I was leaning toward the Sky Hawk, mostly because of the stated difference in the carb. and other statements I've found on here and their site on their QA/QC but they are out of stock right now.

Questions: Is the Sky Hawk carb. really any better than what comes with the Dax kit? Would it give more power and or easier tuning? Are the other components in the kit really any better quality? I'm on no time schedule so as long as it's not 6-8 months or something the time really doesn't matter much and I've read high praise for both vendors customer service on here.

If it is the HT carb that's been reviewed here there is little advantage over stock. Throat is virtually same size. Built-in cock can be more convenient but probably not worth the extra money. I am very happy with engines from Dax and standard carbs.

I would opt for the F80. The Dax sprocket has a definite advantage over the other kits 44T.

__________________
If it ain't broke, and you mess with it long enough, it will be.

Thanks for the replies.

Do you say the Dax has a sprocket advantage because of quality or because it has less teeth?
I Was also considering getting a replacement sprocket because from what I've read most included in the kits are not the greatest but wanted to run the stock one at first to try and figure out the gearing. Not looking to go 35mph with this one, just for cruising around the block. That being said It's going to go on 68 spoke wheels and I don't want to have to be taking it on and off too many times.

Last I knew thatsdax sold there kits with a 40 or 41 T, a definite advantage over stock for cruising unless you weigh 300 lbs, or live in a very hilly area.

__________________
If it ain't broke, and you mess with it long enough, it will be.

The site says 41 tooth. I'm not 300, a tall 200 though and its going on a stretch cruiser and that thing's got to be 40+lbs. I think the shipping weight was 57 lbs or some such thing. Around my neighborhood is fairly flat, but if I do decide to take it on a short trip to work, (5 miles that I currently do daily with leg power on a flat bar road bike) there are a couple of pretty good hills. My legs think the are fairly steep anyway, not sure I could peddle the stretch the quater mile or so up the big one with its stock gearing. I only average about 10-12 mph up it pedeling the flat bar and my legs are burning at the top.
I also just got an e-mail from Spooky tooth saying that they have the GT5 in stock now too.
Hmmm....something else to consider now.

I think I read somewhere that each tooth off is approx. 1 mph increase in top end. Does that sound about right? Could I also assume that you would need about the same difference/2-4 mph increase in speed at the low end to get started with the smaller sprocket?


Thanks for the input this is all really helpful info. And I thought this was going to be a quick and easy little project.

Yes, you will need to pedal a bit faster for take off or starting, but it's not that noticeable. I have a 36T on one bike and it's just a bit tall for practical use as far as I am concerned.

__________________
If it ain't broke, and you mess with it long enough, it will be.

You need one of SBPs tuned pipes on that bike Joe. It'll feel like you're starting off with a 54t.

If that carb is anything like the one that came with my 48cc skyhawk GT-2b, then it's OK. But I still switched to the NSC carb that they sell separately at spooky and other places. If it comes down to sprocket size, you can get 9 bolt sprockets in a multitude of sizes. Personally I run a 48 tooth and I get 27-28 mph on flat ground. I live in a really hilly area, and I don't have too much trouble getting up the hills.

site says the carb is a "new style" NT designed for the 66 with larger jets and ports and has a secondary fuel shut off, while claiming that other kit carbs are designed for the 48cc. "The power difference is night and day". The NT carb that comes with the kit is not the same as the CNS (NSC?) carb. But at the bottom of their aftermarket upgrades page that has the carbs, it says that they have a 36 tooth sprocket that will give you 10mph without sacrificing torque. So??? As with anything on the web. it's hard to cut through what is just claims and BS and what is facts.
Glad there are forums.