Showing posts with label Interbike 2013. Show all posts
Showing posts with label Interbike 2013. Show all posts

Monday, November 4, 2013

Kovit’s Carbon Tube Bicycle Has to Be Seen to Be Believed

Kovit Carbon Tube Frame


This is Kovit’s latest Delta 7 road and track frame. The ultralight, carbon/kevlar bike was revealed to the world at last month’s Interbike show looking like something straight out of a sci-fi movie with a trellis of (what should be called) nanotubes and a wholly reasonable $3500 price tag.
I’m no expert on carbon tube bicycles- or, carbon tube anything, for that matter! As such, I’ll leave further descriptions of the Kovit Delta 7 to the 2 wheeled experts at Bike Rumor, who summed up the stunning bike’s structural advantages as follows:
What remains is the helically wound composite strands that are woven around straight strands to create isosceles triangles to form three dimensional ‘pyramids’. The result are tubes they say are incredibly resistant to bending, twisting and compression forces in all directions. The other benefit, besides being very lightweight, is that damage to one strand won’t compromise the integrity of the entire tube, as can happen with traditional carbon tubes.
The Kovit Delta 7 frame shown in these photos barely tips the scales at all. It weighs just 700 grams- about 1.5 pounds, or about what an iPad weighs with a Smart Cover on it.
What do you think, readers? Is $3500 too much for a bike frame, no matter how slick and trick it is? Is something like Kovit’s carbon tube wonder just the thing to get you to ditch 2 of your car’s 4 wheels? Take a few minutes to check out the photos from teh floor of IB13, then let us know what you think of the bike in the comments, below.


Kovit Isotruss Carbon Tube Bike
Kovit-R6-isotruss-carbon-structure-road-bike02-600x450
Kovit Isotruss Carbon Tube Bike
Kovit Isotruss Carbon Tube Bike
Kovit Isotruss Carbon Tube Bike



Source | Photos: Kovit, via Bike Rumor.

Tuesday, September 24, 2013

The Best Electric Bicycles for 2014 | Interbike 2013


Harlan & ST2
For a more authentic Interbike experience, I walked the floor with electric bicycle retailer Harlan Flagg. Harlan has been selling electric bicycles, scooters and motorcycles at his shop Hollywood Electrics since 2009. Because I was with him, and promised not to breathe a word about it, I was allowed to enter Stromer’s private viewing of their upcoming ST2. All I can say is this- if you’re in the market for the ultimate electric bicycle, you might want to wait until March. The press release will be launched shortly before the bike hits showroom floors.
If you’re in the market for a perfectly good electric bicycle, well, there’s plenty out there now. Harlan’s overall impression was that there are a lot more e-bikes looking like regular bikes now. He liked that so many have moved away from the battery rack and integrated them into the frame. It looks cleaner, and provides a lower center of gravity. He’s also excited about the mid-drive motors on the Currie and Haibike.
At the end of the day, after we’d walked the floor and ridden a few e-bikes on the awesome test track, we found a fairly quiet place to talk about what was new this year…
G2: You’ve been selling electric bikes for four years now. How are sales?
HF: Sales have been good, always climbing. As people are getting more comfortable with the technology, the bikes have become a bit more mainstream.
G2: What sort of customers do you see buying electric bicycles?
HF: LA’s got a few different types of e-bike customers. We’ve got the people who live up in the hills and want to ride but don’t want to pedal back up that hill to Mulholland Drive. Then there are the people who are a little older, or have an injury that makes pedaling difficult. They want to still get some exercise and get out of the car. Then we’ve got the people who want to get out of their car entirely, and ride to work without getting all sweaty. I think there’s been a misconception about electric bicycles being “the lazy man’s bicycle”. I think it just makes everything more accessible. In LA a lot of the time it’s faster to get around town on an electric bicycle than in a car. You can keep a steady speed, lanesplit, even ride on the sidewalk if necessary. When you come to a stop you don’t have to dread it, because regaining your momentum is so much easier on an electric bike.
G2: So this is your first year at Interbike, what did you think of it?
HF: It’s pretty cool, it’s a bit overwhelming. It’s really great to see that the electric bicycles are such a huge part of Interbike. Being able to try them out on this great test course is awesome too.
G2: Yeah, my top speed on one of those bikes today was 23 mph. I rode 6 different bikes, sorted by top speed here. Personally, I enjoyed the Haibike most, I felt the power delivery was smoothest. Although it was strange riding a bicycle with a full suspension, I think I could get into a lot of trouble riding their hybrid around LA…
Bike:Ride TimeDistance (miles)Avg Speed (mph)Top Speed (mph)
Haibike
0:04:10
1.12
16.13
23.05
Stromer ST1
0:04:40
1.28
16.46
22.85
Ford Pedego
0:03:35
1.07
17.89
21.89
Polaris Vector
0:03:54
1.09
16.71
21.18
Juiced odk v3
0:02:19
0.65
16.87
20.39
Bionx Surly
0:02:58
0.7
14.16
16.43
HF: I think I was doing about 35mph at one point…
G2: Sure you were… I had my Cyclemeter running, looks like you should have too! So which bikes did you enjoy riding the most?
Harlan on the iZip
HF: There’s a few bikes I’m really excited about. Obviously we’re really happy with the Stromer ST1, sales have been good. I am excited about the new model too, I think it’s definitely going to be an eye-catching bike. The Haibike with that mid-drive Bosch motor is also very exciting. In Europe they’ve had to innovate around the government-mandated power restrictions.
By putting a 250 motor at the crank instead of at the rear hub, you’re able to get more torque out of it. Especially with the torque multiplication of multiple gears. Here in America, the limit is 1,000 watts, so we’re fine with the simplicity of the hub motor. But the mid-drive systems have brought so much innovation, and now the prices are dropping enough to be comparable with hub motor-driven bikes.
G2: And Bosch is quite a reputable motor manufacturer.
HF: Yes, their systems power traction control, ABS, and so many other innovations in other types of vehicles.
G2: Is anyone else doing mid-drive motors? Or is it just a Bosch thing?
HF: Currie is really stepping up their game, they’re selling the Haibike in the US, and they’ve got their own mid drive system for the Currie brand.
G2: What else was really interesting?
HF: What’s really exciting is to see that these bikes no longer look cobbled together, with some random hub motor, a battery on the rack, all that. They’re really clean and built in. It’s getting increasingly difficult to distinguish them from non-electric bicycles. The energy density of the batteries is constantly improving, they’re getting lighter and smaller all the time, with better range.
Wendy Booher was also at Interbike, and gives a great snapshot overview of some of the bikes present. Later, I’ll post interviews with reps from Polaris, Pedego, and Currie. Unfortunately the ultra-futuristic nCycle designed by Behance wasn’t present. But I guess we’re just not ready for that…

Sunday, September 22, 2013

E-bikes Turbocharge Category with Sexier Bikes and Sophisticated Tech

LAS VEGAS, Nev. No fewer than 53 companies showed off electric bikes this week at Interbike 2013, North America’s annual bike industry tradeshow, and that’s not even taking into account  exhibitors who didn’t exclusively categorize themselves as e-bike companies.
The range of e-bikes now includes full suspension 29ers, classic cruisers, folding bikes, and rare but questionable prototypes (what is the world going to do with an electric downhill bike?) Or, if a full rig isn’t a budget line item just yet, you can electrify an existing bike with one of the many available retrofit systems being shown here in Las Vegas. To keep up with the growing interest, e-bike technology has been evolving to yield ever-more sophisticated batteries and drivetrain systems.
Once a curiosity, e-bikes are rapidly becoming the solution to high gas prices, traffic congestion, and hauling heavy loads like groceries, tools, and even people. E-bikes are just getting started here in North America, what’s below are just a few examples of what’s out there.
Haibike Xduro AMT Pro
Haibike Xduro AMT Pro

Haibike Xduro AMT Pro, 150mm of travel, SRAM X01, Bosch “Performance Line” mid-motor drive system optimized for the U.S. standard of 20 mph (32km/h), hydro-formed aluminum frame with gravity cast bottom bracket, which protects the motor and results in a lighter frame. $7,800
Hi-Power Cycles Revolution
Hi-Power Cycles Revolution
Hi-Power Cycles Revolution, this prototype downhill e-bike seems a little overkill, given its intended use but it’ll get you up your local hill for a few practice runs if you can’t make a break for lift-assisted riding. Custom anodized aluminum frame, lithium battery, power level: 3,500-6,000 watts; speed: 20-60 mph.; range: 38-60 miles; weight: 74 lbs. $6,499
A2B Shima
A2B Shima
A2B Shima, 500 watt brushless built-in rear hub motor, internal cabling throughout frame, battery life 18-45 miles, maximum speed 30 mph. $3,800
Solexity 500
Solex Solexity 500

Solex Solexity 500, aluminum alloy frame with internal cables, lithium-ion battery, 500 watt brushless rear motor, range: 25-37 miles/40-60 km., Shimano components, 20 mph/32 kph motor-assisted, Schwalbe 26″ tires, and integrated front and rear lights. Total weight: 57 lbs./26 kg. $2,795
Modern Retro II
e-Bann Modern Retro II

e-Bann Modern Retro II, aluminum alloy frame, 200-500 watt brushless hub gear motor, 36 or 48 volt lithium battery, max speed: 15.5 mph, range: 25-37 miles; Shimano 7-speed, Avid bb5 brakes, and handmade genuine leather saddle and handlebar grips. $1,795-$2,500


Source: Gas2.0