Ultra Build Using Frey Frame

[badrab]

New build using an Ultra motor from Luna. Principal specs:

—Bafang Ultra motor
—52V 17.5aH Battery
—Egg Rider V2 Display

—Rohloff 14-speed Internally Geared Hub (for through axle frames)
—Lauf Grit Carbon Fiber Fork

—Custom CNC-machined Chainring Spider
—Cirrus Kinekt Suspension Seatpost
—Brooks B17 Saddle

It was a fun build with some unique challenges. On the road now for a few weeks--rides beautifully.

[ncmired]

Well done! Is the chain ring spider your own creation, or aftermarket? If aftermarket, are there different widths available (a common Ultra issue, it seems)?

[badrab]

Thanks ncrkd, I got the spider on eBay because the one that came with Luna's Ultra was for fat bike frames and the Frey's hardtail frame uses Boost spacing. Here's the listing:

https://ebay.to/2RRCSok

cheers, pete