Total Weight:
57.2 lbs (25.94 kg)
Battery Weight:
7.5 lbs (3.4 kg)
Motor Weight:
9 lbs (4.08 kg)
Frame Material:
6061 Aluminum Alloy
Frame Sizes:
17.5 in (44.45 cm)19.5 in (49.53 cm)Geometry Measurements:
Medium-Large Frame: 19.5" Seat Tube Length, 23.5" Reach, 28" Stand Over Height, 33.5" Minimum Saddle Height, 25.25" Width, 71.25" Length
Frame Types:
High-Step
Frame Colors:
Satin Black with Satin Sand Accents
Frame Fork Details:
SR Suntour XCT Spring Suspension, 80mm Travel, 28mm Steel Stanchions, Lockout Adjust, Compression Adjust, Preload Adjust, 100mm Hub Spacing, 9mm Skewer with Quick Release
Frame Rear Details:
135mm Hub Spacing, 12mm Threaded Axle with Keyed 10mm Flats, 18mm Nuts
Attachment Points:
Rear Rack, Fender Bosses
Gearing Details:
9
Speed 1x9 Shimano Alivio Derailleur, Shimano CS-HG201-9 Cassette 11-34 ToothShifter Details:
Shimano Alivio Triggers on Right (Two-Way High Lever, Three-Shift Low Lever), Shift Display Readout
Cranks:
Samox, Forged Alloy, Sealed Cartridge Bearings, Hollow Spindle, 42 Tooth Steel Chainring
Pedals:
Wellgo Aluminum Alloy Platform with Rubber Tread
Headset:
Integrated, Sealed Cartridge, Straight 1-1/8"
Stem:
Satori UP2+, Adjustable Angle 0° to 90°, 70mm Base Height, 110mm Length, 20mm Stack Height, Two 10 mm Risers, 31.8mm Clamp Diameter
Handlebar:
Aluminum Alloy, 20mm Low-Rise, 630 mm Length, 6° Backsweep
Brake Details:
Tektro Auriga Hydraulic Disc with 180mm Rotors, Dual-Piston Calipers, Three-Finger Tektro Levers Motor Inhibitors and Adjustable Reach
Grips:
Stitched Faux Leather, Ergonomic, Black
Saddle:
Selle Royal FreeWay, Gel
Seat Post:
Aluminum Alloy with Forged Single-Bolt Clamp
Seat Post Length:
300 mm
Seat Post Diameter:
30.4 mm
Rims:
Double Wall, Aluminum Alloy, 25mm Outer Width, 36 Hole, Black
Spokes:
Stainless Steel, 13 Gauge, Black
Tire Brand:
Kenda Kranium, 26" x 2.10" (54-559)
Wheel Sizes:
26 in (66.04cm)Tire Details:
40 to 65 PSI, 2.8 to 4.5 BAR, 280 to 450 KPa
Tube Details:
Schrader Valve
Accessories:
Plastic Fenders (70mm Width), Plastic Chain Cover with Reflective Side, 5 Volt 1 Amp USB Type A 1 amp Charging Port at Top Right Side of Battery, Integrated Spanninga Kendo+ LED Headlight, Integrated Spanninga DUXE LED Rear Light, Welded-On Rear Rack with Standard Gauge Pannier Hangers and Bungee Loops, Rear Mounted Adjustable Length Kickstand, Optional $99 SR Suntour NCX Suspension Post with Shim
Other:
Locking Removable Semi-Integrated Downtube Battery Pack, 1.6lb 2 Amp Charger
Mike
5 years agoTorque sensing adjustability/tunability does not require a dealer, or firmware change, or even a password. Its right in the display menu for the user to adjust once they press the + and – buttons simultaneously.
Its a great feature, for those who have felt torque sensing required too much effort on mid drives, and didn’t want that much ‘exercise’ you can set it high sensitivity and the response is awesome. For those who DO WANT exercise, and a work out, and greater range, just adjust to lower sensitivity, and wa lah ! your wish is granted.
The tires are Kenda’s, and I have seen customers get over 3000 miles easy, and no complaints of flats. Same tires that have been on these S604’s for past 3 years.
The grips are much more comfortable on this 2020 model, than prior models, and havent noticed any slippage.
With the prior 10 Ah battery, and torque sensing, 50 mile range was not uncommon, and some customers eeked out more. Now with 14 AH battery, 70 mile range should not be a problem, especially if you ‘tune’ the torque sensing such that the motor doesn’t do too much of the work. Hub drives with torque sensing like this, and the great quality of the other components, including the super smooth 9 Speed Shimano Alivio Derailleur should make it very difficult for people to justify spending $3000 to $4000 for a mid drive ebike, for those previously thinking that the mid drive was the only way to get that ‘natural’ feel more typically associated with the ‘torque sensing’. Now you can have your torque sensing ‘cake’ and make others ‘eat’ your dust too ! (raw power of 48volts and 500 watts, that most mid drives simply dont have)
ReplyCourt
5 years agoGreat feedback Mike, it sounds like you’ve got a lot of experience with Surface 604. Have you purchased one or do you work at or own an ebike dealership? Thanks for making the point about how torque sensing assist gets improved range… and that there are so many great settings available for adjustment in the display by holding + and -.
ReplyLanny
5 years agoVery Interesting & I’m interested
ReplyJames
4 years agoI know you mentioned the Shred briefly in the video, but I’d be curious how different these bikes actually are, as they seem very similar except for frame geometry (integrated rack and overall height) and wheel size. Are there other major differences? Or are they pretty similar (even in weight!).
ReplyCourt
4 years agoHi James! Yeah, I’ve noticed that many companies in the space will share motors, batteries, and drivetrains across models to make them easier to build and service. The geometry, wheel size, and tires are the main differences… but seat post, saddle, grips, stem, and handlebar also play a role. The cool thing is, you could get an “off road” ebike and then swap the stem and bars to make it more comfortable/upright for urban riding. That’s what I’ve done in the past and really enjoyed the process and end result :D
ReplyTom P
4 years agoHi Court. Does the newest 2020/2021 Colt have the same display/control as the Shred? I ask because I’m trying to figure out if the Colt can be configured to be Class 3+ Pedal Assist. Other than wanting Class 3, the Colt sounds a like a great fit for me. I had a Aventon Level, which I bought after reading your review here, but was stolen after 2 months! So the password protection feels like a “must have” now. :-(
ReplyCourt
4 years agoOh man! Sorry to hear about the bike theft there, Tom. I haven’t looked closely at the new Surface 604 models YET! But, I’m planning to do so in the coming weeks. I called the founder to ask about the displays this morning and he said they updated the display for 2021. The old ones were 3.2″ and the new are 3.5″ and he says it DOES have the password protection and Micro USB as well.
ReplyDan
4 years agoIt’s been a year since I bought my 2020 surface 604 colt and I love this bike. Its a very comfortable ride. My lower back used to get sore when doing long distant rides, but not anymore. The adjustable handlebars put an end to that cause now I can sit upright when riding. It’s great on soft trails, and I’ve been all over the place on it. Cumberland, Merville, even Mt. Washington. I got up to 76 klms an hour on the way back down the mountain and the bike handled great, no speed wobble, nothing. It’s a solid bike. And Comox hill is a breeze. Now after 1 year and over 3200 klms later, and numerous conversations with other e-bike owners (some pricier, others not), I’d buy the 2020 surface 604 colt all over again, and Curtis from amped rides provides great service too.
ReplyCourt
4 years agoThat’s fantastic, Dan! Thanks for sharing your testimonial here. I agree that the bikes are well made and the company genuinely seems to care (along with some of the dealers that carry it). I hope it continues to hold up for you, maybe we will cross paths out on the road someday ;)
Reply