Gravity BullseyeMonster LTD with BBHSD and 52V 13.5 ah Panasonic Shark Pack

[motoray]

Sorry I've been offline for a bit. Is there a way to get email updates...keep wanting to subscribe, but haven't figured out how.

Glenn, I'll try and get the stuff you asked for. Can't remember the frame size offhand, but will go look it up and get back to you.

[motoray]

OK...it's a 20 inch frame. I'm about 6 ft with a 32 inch inseam and it works great for me.

And I figured out the email notification thing so I promise to be more prompt about replying.

Here are the low gear and chain ring space pics.

[motoray]

I've started mostly running a couple gears higher than that in general and the chainline is pretty straight there.

[motoray]

Finally here are a couple of pics from my Trek Mountain bike's chainline for comparison.

[CPG]

On the whole chain line thing, my Sturgis Bullet fattie has a pretty wonked one when in the lowest 3 gears. As it is my trail rider that is where I spend a lot of time, but after the first 500 miles I am still on the original (unknown quality) chain that came with it, and my cassette and Mini chain ring look fine. It just surprises me it works as well as it does I guess. I don't know if there is an efficiency hit however, maybe more drive line drag?

It's good to see I'm not the only one who lets their ride get real dirty and is not ashamed....that bike is being ridden!

[motoray]

Ok now I'm going to have to wash it. :P

[motoray]

Recently got the first upgrade for the bike--the full color display. I haven't had my first ride on it yet, but am hoping for soon. Thought I'd post photos, though, of the before and after shots.

[hobby nitro]

woww
i like this build !!

[CPG]

I finally got around to figuring out how to change some of the settings on my full color display, after riding it as it came out of the box for the last 700 miles. I like the watts being consumed displayed v. the amps, so changed to that. Changed the PAS to 9 levels, so much better control over how much it helps me..... and lastly, ramped up the display's brightness so now I can actually read it without having to look at it from a certain angle. Nice piece of equipment all in all.

[motoray]

I got obsessed with the display before buying so have programmed before my first big ride with it (yesterday--about 15 miles). Like you I have PAS set to 9 and the display brightness turned up. I was surprised when even though I showed battery power left on the batter that it died on me about .5 miles from home. I hadn't charged it up all the way (was only reading about 51.6 volts before I left...so I figured that wasn't bad given all the climbing. Still caught me a bit off-guard. Have you found a way to have it accurately tell you when you're REALLY out of juice?

[motoray]

Dunno if I ever posted this, but I realized a while ago that I actually bought the 11.5 ah battery. Now I really wish I'd waited...though in all fairness I've gotten plenty of use and range out of the pack I bought. I'll upgrade later. :P

[Downshift100]

How's the Gravity Bullseye Monster LTD holding up right now?

[ykick]

Yeah, me too?

As I followed this OP used a 120 kit? Think 100 might've worked while keeping the chain line more tolerable with the Aluminum 40/42T?

[ykick]

I had to do a double take - are my eyes playing tricks?

It would appear the alloy outer cosmetic lock ring is on the inside and the main (inner) steel locking nut is on the outside? Do I have that correct?

[Downshift100]

Yeah that's the way it looks in pic.....however the gray ring is supposed to go on first.....then black ring (jam nut) should go on after.

[MAFRANO]

I just ordered the same bike and I am now in the planning stage. Any advice now that you've had yours in operation for a while? Any changes you would have made? Thanks

[ykick]

If I were doing this platform I'd probably stick with 100mm BBSHD and use Luna Aluminum 40T sprocket. Maybe 30T mighty mini if I were mostly off roading?

[Downshift100]

ykick......the bottom bracket on this bike is 103mm, so might have to use 120 kit.

[ykick]

I'm talking out my ass because I don't have this frame or even 100mm BBSHD currently available to check spindle thread width. But, I think 3mm wouldn't be that much of a problem? Can somebody confirm there's a few mm threads to deal with couple mm one way or the other? The improved chain line be worth figuring this out?

If you go with the 120mm HD order an extra spacer kit because the included spacers only amount to about 10mm.

[Hap]

I am very interested in doing this build..So am following. Since the original OP started is there different pieces that would work better. I am concerned with chain alignment and general irritants of the final build?
I am a very new NOOb to this hobby. Just sold my Monster ltd peddle machine. Thought I was going to buy a Rad Rover but am not opposed to this project if it is quite straight forward and final result is reliable and solid. I am going to use for flat dirt and pave roads and occasional two track roads/trails.

[Poco Askew]

I am very interested in doing this build..So am following. Since the original OP started is there different pieces that would work better. I am concerned with chain alignment and general irritants of the final build?
I am a very new NOOb to this hobby. Just sold my Monster ltd peddle machine. Thought I was going to buy a Rad Rover but am not opposed to this project if it is quite straight forward and final result is reliable and solid. I am going to use for flat dirt and pave roads and occasional two track roads/trails.

Have you looked at THIS LIST?

[Hap]

I did find that list today...Not sure there is a build I found on there yet that I feel comfortable jumping on ! Any recommendations from what you have done?

[Poco Askew]

Sorry - No.
I'm new and still learning. I was going to do a Bullseye Monster, but decided on going cheap and ended up with a Walgoose Hitch fatty. I figure for $200 I can learn and move the BBSHD to another bike, if wanted. None of it seems difficult. Getting a good chainline and clearing the chainstays seem to be the main issues. Since my BB is 103mm, I would like to get the 110mm version of the BBSHD, but it is by far the most difficult width to find. The advantage to the 120mm model is it will allow more adjustment for clearance and centering since the motors are offset toward the drive side (crank is closer to the frame on non-drive side). Good luck (to both of us)!