Here is another Ultra Eagle Review
Bike review for Juggernaut Ultra Eagle bought as a Clearance/Demo model from the Biktrix website October 2021. At the time I already had three other relatively recent ebikes, but an Ultra Eagle at this sales price was too hard to resist. So now my current fleet (in order of acquisition) is:
Frey CC:
Full suspension, 2.4 x 27.5 Schwalbe super moto g tires, 48 v Bafang Ultra, 10 sp Shimano Deore, Magura mt5 203 mm rotors. Total cost including shipping from China, $3200
Priority Current:
No suspension. 650 b 1.85 x 27.5 WTB horizon tires, 48 v Wuxi/ Truckrun, Enviolo 380 Gates belt, Tektro 2p 180 mm rotors. Total cost including shipping from PA, $2699
DIY CYC Motor/ KHS 4 season 500 fat bike:
No suspension, 4 x 26 Chaoyangs, 48v CYC gen 2 kit, 7 sp Shimano Acera, Shimano 2p 160 rotors. Total parts cost not including the donor bike, about $1650.
Biktrix Juggernaut Ultra Eagle:
Front suspension (same fork as my Frey) hardtail, 2.8 x 27.5 Maxxis minion DH f and rās, 52 v Bafang Ultra, 12 sp SRAM gx eagle, Tektro 4p 180 mm rotors. Total cost shipped from Saskatoon to Minneapolis $2699.
Note all these bikes are torque sensor mid drives, with only the Priority Current lacking a throttle.
The buying experience: After discovering the bike on their website under their āDealsā tab I emailed sales support with a few questions specifically about the bikeās size and fit as I have a rather short 28-29 inch inseam and possible add on charges for shipping to the US and sales taxes. As luck would have it the available demo was the smallest of the three frame sizes they offered in their limited run of 50 or so of these bikes and the price quoted included shipping with no sales tax for shipment/sales to Minnesota. After placing the order online the bike arrived 9 or 10 days later via FedEx well packed with all the accessories including an assembly tool kit I assume are included with a brand new bike order. As usual, the front wheel was removed as well the handlebars to fit the bike in a more compact box.
Aside from being a bit dusty probably from sitting around in a warehouse for a while the bike seemed as new with about 35 miles shown on the display odometer if such gages may be believed. So far Iāve put about 125 miles on her and verified smooth shifting through all 12 gears and good stopping power with the 4p tektro brakes with no untoward squealing or shuddering noise. The chain does sit mighty close to the tire in the highest 50 tooth granny gear, but there is a good 10 mm clearance (that said, I wouldn't try to install any fatter tire). I paid particularly close attention to this after reading the travails others were having with similar Ultra powered bikes with frame interference and chainline induced cog skipping on brand new bikes priced about twice as much as this model over on the EBR Wattwagons forum. As a demo bike it came equipped with a rear Mudhugger fender and a sprung wide beach cruiser type comfort saddle. Disappointingly there was no āx of 50ā badge on the frame, I suppose because this was reserved as a display/demo bike. As shown in the pix below, I kept the Mudhugger and added a front as well, but replaced the seat with a suspension posted leather saddle. I also added a rear rack, changed the bars to a slightly swept back loop bar with ergo grips, and added a mirror, bell, and an auxiliary light to the bar loop. Later I may add Tannus armor.
Riding Feel/Experience: For the most manual/acoustic bike-like riding experience where everything is instinctively controlled through your feet on the pedals, grip on the bars and body english as you shift your weight over the seat, the DIY KHS kit bike and the Priority Current rank first because they based on actual bicycles ( the Priority Current looks to be derived from their acoustic Turi model). With the Frey and Biktrix, you have to be a bit more intentional, maybe because theyāre a bit heavier so some rider-to-bike weight ratio threshold is exceeded. Of course all 4 bikes have unique ride personalities, largely based on their tires and frame geometries. Both the Frey and Priority came set-up as city/commuter vehicles while the Biktrix and DIY Fat bikes are more single track trail/adverse terrain oriented.
Interestingly both the Biktrix and Frey can be highly customized, so I could have ordered the Ultra Eagle with Schwalbe Super moto G tires and Magura brakes like the Frey, and vice versa, I could have ordered the GX (using R & M marketing terminology) version of the Frey CC with Maxxis tires and a different higher ratio groupset. So I think of my Frey as my GT bike, and the Biktrix as my ultra powered GX bike.
Over on the forums, much has been written about the tuning of the Bafang Ultra motor. In particular many say Biktrix has tuned their Ultra models ``betterā than the rest and if you really want to have the premium European experience you have to shell out another thousand bucks to WattWagons for the Innotrace Germain designed aftermarket controller. I cannot say anything about about Archon/Innotrace since I donāt have one, but the main difference I notice between my Frey (which I assume is the stock Bafang factory tuning) is that in PAS 1 the Biktrix seems to deliver a 20-25% wider power band than the Frey which requires you to bump the PAS to 2 or so for equivalent power. Itās a noticeable , but to me not a terribly important difference since so far my legs seem to adapt quite quickly to whichever bike Iām riding since I usually supply 60 to maybe 75 % of the propulsion energy via the pedals. And although I donāt use the thumb throttle on either bike that much, it could be that the Biktrix is turned a little smoother. So although I have the usb interface dongle I havenāt messed with any of the widely publicized tunings (i,e,. The āsmooth tune by Mike at Freyā or the looney Luna settings) since I find the performance ride quality characteristics just fine with both ultra powered bikes just as they come. Whatās important to me is low speed power control for tight spot maneuverability on crowded bike paths with unpredictable kids and dogs milling about. In this regard I rate the Biktrix very good. One thing that surprised about the Biktrix is the performance of the Maxxis Minion tires. Theyāre not nearly as loud as I expected from the noise of my 4 inch tire fat bike, and judging by the speed achieved rolling down my standard test hill, their rolling resistance is not too far behind my Freyās Schwalbe street tires. As to the rest of the components on my ultra powered bikes, I like the Magura brakes and the SRAM transmission the best. I notice though that Rambo has a new ultra powered fat tire hunting bike with the Enviolo hub which could reduce brush/weeds from getting tangled up in the drive train, although durability could be an issue with this set up.
All in all I think I was lucky to be at the right place and the right time to bag a deal on one of Biktrixās most excellent models. It's too bad these non-integrated battery designs seem to be going the way of the Dodo which might be the main reason I snagged such a bargain.