Total Weight:
68.9 lbs (31.25 kg)
Battery Weight:
7.5 lbs (3.4 kg)
Motor Weight:
10.1 lbs (4.58 kg)
Frame Material:
Aluminum Alloy
Frame Sizes:
15.5 in (39.37 cm)Geometry Measurements:
Unfolded Dimensions: 15.5" Seat Tube, 27" Reach, 26" Stand Over Height, 34" Minimum Saddle Height, 26" Width, 64" Length
Frame Types:
Folding, High-Step
Frame Colors:
Torch, Graphite
Frame Fork Details:
Air Suspension Fork, 32mm Steel Stanchions, 45mm Travel, Pressure Adjust with Lockout, 135mm Hub Spacing, 9mm Axle with Nuts
Frame Rear Details:
175mm Hub Spacing, 12mm Threaded Axle with Nuts
Attachment Points:
Fender Bosses, Rear Rack Bosses, Bottle Cage Bosses
Gearing Details:
7
Speed 1x7 Shimano Tourney, MF-TZ500-7 14-28 Tooth Freewheel, Shimano Tourney DerailleurShifter Details:
Shimano RevoShift Half-Grip Twist on Right
Cranks:
Lasco, Forged Aluminum Alloy, 170 mm Length, 48 Tooth Steel Chainring with Alloy Guide
Pedals:
Wellgo, Plastic Platform, Folding
Headset:
Integrated, Sealed Cartridge Bearings, 1-1/8" Straight
Stem:
Aluminum Alloy, Folding Telescoping Height Base 270mm to 400mm
Handlebar:
Aluminum Alloy, Low Rise, 660mm Width
Brake Details:
Tektro Auriga E-SUB Hydraulic Disc with 180 mm Rotors, Four-Finger Levers with Motor Inhibitors
Grips:
Ergonomic Rubber, Locking, Dark Grey
Saddle:
Selle Royale Gel
Seat Post:
Exoform 625 Suspension (30mm Travel, Preload Adjustment Bolt in Base), Aluminum Alloy, Quick-Release Skewer
Seat Post Length:
260 mm
Seat Post Diameter:
27.2 mm
Rims:
Aluminum Alloy, Double Wall, 36 Hole, Black
Spokes:
Stainless Steel, 13 Gauge Front, 12 Gauge Rear, Black with Silver Nipples
Tire Brand:
Chaoyang, 20" x 4.0" (98-406)
Wheel Sizes:
20 in (50.8cm)Tire Details:
5 to 20 PSI, 0.4 to 2.1 BAR
Tube Details:
Schrader Valve
Accessories:
Rear-Mount Adjustable Kickstand, Steel Derailleur Guard, Velcro Protector and Magnet Clasp for Folding
Other:
Locking Removable Main-Tube Integrated Battery Pack, 1.4 lb 3 Amp Charger, Folding Frame, Internal Cable Routing, 42 Volt 20 Amp Controller, Rust Resistant Stainless Steel Chain
Angel Yulan
4 years agoHi there, Tyson
Can you tell me if the XS FOLD E BIKE model can be accommodated with a bike rack in the rear, front headlights, and brake lights.
Thanks
ReplyCourt
4 years agoHi Angel, I do think that some bike racks could work with the SONDORS Fold XS, but I haven’t tested it personally. You might need a seat post rack clamp like one of these and then a fat rear rack to fit the wider tires. As far as lights, I don’t think that you can get ones that are wired in to run off of the battery for this model (without some custom work). Maybe you could get some rechargeable ones like these that would work. You just might want to take them off each time you park in a public rack, so they don’t get stolen. Hope this helps!
Replyblobby
4 years agoThey sell the rear rack and bag as accessories on Sonders site, I noticed it on their UK/EU site. Some other accessories too.
ReplyTed Penman
4 years agoHey there,
I’m looking to purchase either the Radmini or the Sonors Fold XS. In your opinion, which bike did you like best and why?
ReplyCourt
4 years agoHmm, great question there. I really like the style and culture that SONDORS has cultivated. If it appeals to you, and you like the paint job and little upgrades on the Fold XS, then go for it! My favorite parts about Rad is the accessories and cross compatibility of the battery packs. I feel like they are more methodical in how they develop systems and a company vision. SONDORS is more spontaneous and passionate… like their YouTube video where the founder is saying “we’re going to disrupt this space!” and how their first kickstarter really shook things up. It’s great to see. For me personally, I have friends and family who bought RadRovers and I feel like I could borrow a battery pack or share their rack for a trip etc. and that’s pretty cool. I also feel like they hold their resale value well because the company does more ads and has been around longer. It’s a close call and I think both bikes could be great, so I hope these perspectives help you make a decision and get out for some fun rides :D
ReplyTed Penman
4 years agoThanks for your honest opinion… I wasn’t exactly honest =) I have a rad mini but wanted to keep the question neutral as far as you not knowing it, my apologies. I coulndn’t agree more with you on the philosophy of Rad Power bikes. I believe in their vision and leadership. As you stated though, Sonders is and will continue to shake things up and be very innovative. For me, I love Sonders style and their progressive use of efficiency where they can with their technology ie. no cables and a hidden battery.
I can’t argue that they both have something to offer and is an individual choice. Sonders will def be my second purchase and will decide which to keep… Thanks for the feed back and ride on!
Tyler
4 years agoThe listing for top speed in this review states “capable of 28mph with modification”. Could you elaborate more on that? Is it “unlockable” through advanced settings? Is that for class 3 pedelec? Or throttle only?
ReplyTyson Roehrkasse
4 years agoHey Tyler, I did some more digging into this and I don’t think the Fold XS can actually be modified for 28mph speeds… at least not easily. Technically the battery and motor are plenty powerful enough to handle it, although high speeds can be a bit more difficult to achieve with the smaller fat tires. Anyways, it doesn’t appear that there is an easy way to do this in the settings. With that said, it’s relatively easy to mod SONDORS bikes for all kind of things, so you may be able to find more asking on our SONDORS forums.
I’ll update the review accordingly!
ReplyJamal
4 years agoThank you for your incredibly detailed reviews on this website. They’re priceless in this age of not being able to check things out in person. I’m buying my first electric bike, and I’ve got my decision narrowed down to the Radmini Step-thru 2 ($1499, free shipping) versus the Sondors Fold XS ($1699 plus $99 shipping). I know Ted Penman above asked this question, but I’d like to hear more about the ride quality difference between the two bikes from an expert who has tried riding both bikes. The XS has hydraulic brakes, an air suspension fork, suspension seatpost, and 4.0″ wheels; the Radmini has mechanical brakes, a spring suspension fork, no seat suspension, and no longer comes with 4″ Kenda wheels (instead now delivered with 3″ CST Big Boat per their website). Based on these differences, you would think the Sondors Fold XS is a better ride than the Radmini, but sometimes specs aren’t everything. Sometimes it’s just the way it all comes together and how it feels when you ride. I’d appreciate your expert insight on the ride experience, comfort, how the power felt in each bike, and whether the higher specs on the XS are truly good components or just gimmicks to fool us novices who don’t know as much about bike parts? I honestly have no idea whether a spring suspension fork vs air suspension fork really makes a difference in the end?
ReplyCourt
4 years agoHi Jamal! Great questions… I (Court) reviewed the RadMini while Tyson covered the Fold XS, so unfortunately it’s difficult to answer your question perfectly. You’ve done an excellent job listing out the mechanical differences! Perhaps the deciding factors will be a combination of aesthetics and long term ownership. Rad has a great reputation and should be easy to resell. They also use the same battery pack for each of their products which ensures cross compatibility. The spring suspension will be very reliable, and still fairly adjustable with preload and compression/lockout while air pressure can be changed and sometimes air shocks weigh less than spring. The hydraulic disc brakes are an awesome upgrade (probably the most meaningful for me) that SONDORS brings, but the suspension seatpost is fairly generic and could be added inexpensively to the RadMini (or you could buy the nicer SR Suntour NCX directly from Rad for $100). Tires is another big question mark. Do you plan to ride off road? Are you a fan of knobby tires vs. smooth? They will be louder and less efficient but also more comfortable and the higher air volume brings shock absorption and wider tires mean better float on sand and other soft terrain. If you’re more of an urban rider and like the Rad accessories, then that’s a great choice, but the Fold XS is also a great product. I hope this little overview helps you out :)
ReplyJamal
4 years agoThanks for your insight Court. Only other thought I wanted to ask you was about the motors. Tyson indicated the Sondors bike has a nominal output of 750W and peak of 1000W. Is this the same on the Radmini? Some forums suggest Rad’s motors actually offer 500W nominal output and the advertised 750W is their peak output?
Pablo Casco
4 years agoGreat detailed review. I would agree with Jamal’s comments above, for for us buyers, this type of information is valuable and helps us to have a different perspective on a product that haven’t seen in person. I have done some research on this bike and the Aventon Sinch. They both have esthetic appeal, both seem to be well built with quality products. However, I am walking away from Aventon because I noticed one advertising flaw. They promote their bike “750W”, but in reality they are using a 500W motor with a potential peak of 750W. If you go to Sandors and Rad, it will tell you, you are getting a Bafang 750W (with a possible peak of 1000W:Sandors) which should be the norm for advertising. When companies start with marketing gimmicks like that, you lose interest and may give the wrong impression of the company. I am still looking for the 750W comparative to Sondors, I have looked into the RadMini, one thing I don’t like is the 3-inch wide tire, also the open visible battery, very noticeable that is part of the first-gen bikes. Furthermore, I think is more suited for city cruising and light trails, where the Sandors is more for open/off-roading, which is more appealing to me.
I do have a question, do you guys know what the clearance pedal-to-ground is for the Sandors? I will suggest as a recommendation to include in the detail specs. That will give people an idea for those seeking do more aggressive trails, given, these are not “full” mountain bikes, but still a good piece of information to have.
Thanks,
ReplyPablo
Court
4 years agoHi Pablo! That’s great feedback, both about advertising ethics and the crank arm length so you won’t get pedal strikes. I’ll keep that in mind going forward. It sounds like the Sondors will be a good fit, and the taller tires should provide some clearance for the standard 170mm cranks that come with.
ReplyRon
4 years agoVery few reviews and product specs provide max cargo weight. Especially for bikes which may accommodate a passenger. Two adult men would need 400 lbs min.
ReplyRick
4 years agoPut me on your mailing list, thanks.
ReplyCourt
4 years agoHi Rick, we don’t have a mailing list here at EBR. If you want to be on the SONDORS mailing list, I suggest visiting their official website here and signing up :)
ReplyJohn
4 years agoCan anyone explain why sondors choose a 48 tooth steel chainring instead of a 52 like the other foldable ebikes?
ReplyCourt
4 years agoGreat question, John. No, I cannot explain that. I see that some companies lean towards a slower cadence because they prefer that ride style (or have strong motors that tend to go faster so the low gears are less necessary or useful). The fact that this one also has a very limited 14 to 28 tooth freewheel means that there are fewer cadence options in general, so maybe they leaned towards “comfortable at mid and high speed” vs. “comfortable at low speed but gets outpaced at 20mph” that’s my quick guess. It may be possible to replace the chainring post-purchase if you prefer lower gearing.
ReplyYahel Davila
4 years agoHello,
I noticed that you listed the seat post diameter at 27.2 but I have read in some forums that it’s actually 30.9. Can you please clarify this?
Thanks
ReplyCourt
4 years agoHi Yahel! We record what we see on our demo bikes, but sometimes the hardware changes mid-season or each year. Sometimes, it can even be different depending on frame size. I cannot speak to the most up to date SONDORS Fold XS models, but I bet you could ask SONDORS directly via email before you make a buy. I’d love to hear what you find out! This is why we have open comments and the forums, so people can fill in the gaps. Our reviews are like snapshots for exactly what we saw at a specific time and we try to corroborate the writing by also saying and showing with video and photos :)
ReplyJon Rego
4 years agoFirst – great reviews! I am torn between the Aventon Sinch and the Sondors Fold XS. The reason I like the Sinch is that there is a local dealer who is offering free tune-ups for a year and he doubles the warranty to 2 years, plus they will assemble it and I can get delivery within 2 weeks.
I like the Sondors XS because they offer hydraulic brakes, a color screen, more suspension, a more powerful motor, etc. The one thing holding me back on the Sondors is that it is a mail-order bike. I live in northern California and to get warranty service or if something goes wrong, I will not be able to take it in to a local shop, since their company is in southern Cal – plus the fact that I have to assemble it.
In your opinion, my hesitance about it being a mail-order bike, possible warranty problems, and bike assembly – are these valid concerns?? Thanks!
ReplyCourt
4 years agoHi Jon! Unfortunately, yes… I think those are valid concerns with any ebike. It’s good that you’re thinking about them. The problem is that very few stores sell folding fat tire ebikes (at least that I’m aware of). I’d call around to local shops just to check, then make a decision based on what you read online. SONDORS delivers a lot of value at this price point and seems to have decent quality. They’ve been around long enough to have replacement parts for sale on the website and most regular bike shops can help with tires, chains, derailleur etc.
ReplyConrad
3 years agoHello, great review. I’m torn between the XS Fold and the MXS. I’ll be using the bike to commute on paved trails to my job about 8 miles. I’ll be driving my Scion tC commuter car half way so I will have to put the bike in the hatch which is pretty spacious. I think I could get the MXS in it. For commuting which bike would be most comfortable in your opinion. I’m 5’10” 185 lbs.
ReplyCourt
3 years agoHey Conrad! Similar stats for me (this is Court by the way). I’m 5’9″ tall and almost always prefer full sized wheels and non-folding frame vs. the smaller 20″ on folding models. Now, the XS is a folding fat tire ebike, so the effective diameter is more like 24″ and you get increased air volume. Still, the nicer fork and plus sized 3″ wide tires on the MXS are definitely my preference. That said, the front wheel isn’t quick release, and the bike is fairly heavy with extra steps to remove the battery pack, so just go easy when lifting. The folding XS might fit a little easier, but it’s also heavy. I feel like the tricky part might just be maneuvering the full sized frame into your car even if weight was exactly the same :/
Reply