My DIY Luna Cycle Bafang HD is finished!

Tom@WashDC

Active Member
Region
USA
City
Loudoun County, VA
Took the bike out today for the first time with the stock Bafang chain ring. Through mud and up and down a lot if steep hills. Rides tight, feels so sturdy, like a tank. The tires made everything feel like butter. No problem in the deep mud, soggy grass, and ice n' mud covered fields. The Dolomite cable disc brakes work perfectly fine. Not as good as the hydraulics on my Aventon Level, but sufficient stopping power for my applications. Broke the stock Mongoose chain goin up a 100 ft., 50 degree grassy hill. Luckily I had a chain tool. Tomorrow I will test out the Luna Mighty Mini 30 tooth chain ring. Ordered a new chain. No fun fixing those things in the cold.
 
Last edited:

jangles

Active Member
True Thomas , I only use the stock ring that comes with the BBSHD but have thought about something like a Lekke to get more torque . Speed is not really an issue but nice for some people .
 

Tom@WashDC

Active Member
Region
USA
City
Loudoun County, VA
So I tried the 30 tooth mighty mini. There is a huge difference just pedaling the bike. I did not take if for a a long run. Tomorrow I am going in the backwoods to give it a real test drive. My first impression is that on my 7 Speed cassette, I could do way with a few gears, maybe keep the smallest, middle and largest gear. The others gears seem superfluous. Definitely adds a a lot more torque for uphill's. There is some loss of top end speed but I don't care about that. My Aventon does 32 MPH which is really too fast and I don't see the need for that kind of speed in the off road conditions I intend for this bike.
 

Tom@WashDC

Active Member
Region
USA
City
Loudoun County, VA
Took the new build out for a hard, 3 hour spin through the woods, over hill and dale, through the mud, rocks, creeks, and fields of Loudoun County Virginia. Rode like a charm. I don't think I could ever go back to "skinny" tires again. The fat tires are so smooth. I did not have any problem with the rocks and obstacles in the path and felt I had lots of control. I really enjoy them on the pavement too. The Luna 30 tooth mighty mini chain ring has awesome torque, but the problem is I have to pedal like a jack rabbit at 16mph now! I will need to install a new rear cassette to give me a smaller gear so I can travel at 20mph without pedaling like a mad man. The build turned out exactly as I had hoped for. It will go pretty much anywhere, climb any hill with ease, and is very sure footed. I am a Fat Tire Bike fan now, and the Bafang HD was an easy install and has as much power as I could ever want. The Mongoose Dolomite is an excellent, inexpensive platform, and the brakes work fine. Eventually I'll add hydraulic disc brakes, but I'm in no hurry. I ran with 10psi on the front tires and 20 psi on rear tires, and a Suntour suspension seat post. I have a front suspension fork arriving in a few days. The ride was very smooth. I did the same ride (much slower) on my Aventon Level just once (never again) and the ride was much harsher even with a front suspension fork.
 

Attachments

  • IMG_2821.jpg
    IMG_2821.jpg
    722.2 KB · Views: 137
  • IMG_2823.jpg
    IMG_2823.jpg
    580.6 KB · Views: 133
Last edited:

Tom@WashDC

Active Member
Region
USA
City
Loudoun County, VA
Oooh! hand warmer cowels. Did you invent those? Never seen such a thing. 🥰
Got them off of Amazon. The first set I purchased (Zosen) were made of neoprene and they work well but are a bit snug, and seem delicate. The set (Kemimoto) in the picture are very durable, have lots of room, and are insulated with fleece. I used to use the same thing when kayaking in the winter. I prefer these "pogies" or handlebar mitts to gloves as my hands are free, and they stay very warm without gloves, even in the coldest weather. Just noticed that Rad Power Bikes is selling the mitts too: https://www.radpowerbikes.com/products/handlebar-mitts
 
Last edited:

Tom@WashDC

Active Member
Region
USA
City
Loudoun County, VA
Very useful. But $79 is silly. I have had several pair as well. I found $20-$25 is all I need to spend!
I agree, that $80 is steep. My $20.00 Neoprene ones work just fine. I ended up getting two sets because my wife decided to become a cold weather rider too.
 
Last edited:

Tom@WashDC

Active Member
Region
USA
City
Loudoun County, VA
Took the bike out yesterday for the hardest ride of my life. Racing through trails, and tearing up hills and banks like I was surfing Cape Hatteras the day after a hurricane (in my younger years 1975-85'). The motor is smooth as silk, and had power to spare. The Mighty Mini Chain Ring is "torque-city" on the hills. With Fat Tires I feel like I can go anywhere. My buddy and I (he rides a Bafang BBS02) were glad that our faces were hidden by cold weather masks as we must have looked like a bunch of teenage ruffians tearing up the neighborhood. I'm 62 and he is 59. This bike is way too much fun, and I have not come close to maxing out it's capabilities. As my buddy said to me, "it's just fun, like being a kid again with my new Big Wheel".

..and towards the end of our ride, as I was cruising on smooth, paved trails, escorting my buddy home, I got a friggin' flat tire, four miles from my home, and it stated to rain, nice and cold... Happy New Year!
 

Attachments

  • RetroBW1_500.jpg
    RetroBW1_500.jpg
    126.3 KB · Views: 63
Last edited:

Tom@WashDC

Active Member
Region
USA
City
Loudoun County, VA
And for those that might be interested, the Mongoose Dolomite has a decent wheel liner!
 

Attachments

  • Dolomite.jpg
    Dolomite.jpg
    92.3 KB · Views: 72

Tom@WashDC

Active Member
Region
USA
City
Loudoun County, VA
Yeah Jangles, funny thing. Just before I left on my bike ride I reached for a bottle of Slime to put in my back pack, then I got side tracked, and forgot it. It worked perfectly on my tire after I got home. I'll never go out without it again!
 

Tom@WashDC

Active Member
Region
USA
City
Loudoun County, VA
I just installed a new 11-34 Free Wheel. It is the Bomb! The Dolomite comes stock with a 14-28, and combined with the 46 Tooth stock Bafang Chainring, it was under whelming. Slow to get up to speed, and not quite enough power for me on the hills. I purchased the Luna Mighty Mini 30 and tried that out in the woods. The 30 definitely allows me to climb any hill with torque to spare, but I had to pedal like a frenzied Jack Rabbit on the road to get to my destination. The 11-34, with the 46 chain ring seems to be a perfect combo. Plenty of torque on the hills, lots of top end for speed.