Posts in the category Hacks

Found: Bad Ass Homemade Miniature Penny Farthing e-Bike

homemade miniature penny farthing e-bike

Found in downtown Asheville, NC, this miniature “bike” is powered only by a hub based motor and the side mounted battery pack. It’s throttle only, there are no actual pedals, but we’ll easily overlook that because, well, just look at it. Awesome. We chatted up the builder outside the bar, and there’s no website or anything for his craft yet. He said he’s looking into options for selling them or the design. Until then, there’s more pics after the break…

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OneUp RAD Cage Hacks Shimano Rear Derailleurs to Better Fit Oversized Cogs

OneUp Components RAD Cage replacement Shimano derailleur cage to offset pulley for oversized rear cogs

OneUp Components has introduced a few firsts in the oversized cog game, namely the 16T replacement cog. Now, the RAD Cage boosts derailleur performance at the top end of the cassette without having to reverse or extend your B-Screw.

Made for modern, clutch equipped 10-speed Shimano Deore, SLX, XT or XTR medium cage rear derailleurs, it repositions the upper pulley to improve tooth and chain clearance over 40 and 42 tooth cogs. I installed it on my Niner RIP 9 RDO, which was already running their 40T and 16T cogs. When originally setup with those two parts, I had to bury the B-Screw all the way, which just barely left enough room between the pulley and the largest cog. There was no way OneUp’s (or anyone else’s) 42T cog was fitting in there without more drastic measures. Until the RAD Cage, anyway…

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Ditch the Saddle for a Harness with the new Flying Bike!

Flying Bike 1

Inventors are always targeting the bicycle saddle as an area of improvement – after all, for non cyclists they always seem to be a source of complaints. For Architect and engineer David Schwartz however, it wasn’t how he could redesign the saddle, but how he could remove it completely. That idea drove him to create the first proof of concept for the Flying Rider, a bicycle with no seat.

David says he came up with the idea for almost the exact opposite reason you would expect. Instead of eliminated the saddle for pressure relieve, David thought that if riders had something to push against with their back, they could generate more power to the pedals and be more efficient. The final result is a prototype with a cage that surrounds the rider who is suspended in the middle with a harness.

Strap into your new flying machine, next…

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The Robert Axle Solves 142×12 MTB Trailer Woes

Robert Axle Ibis 142x12For adventures or those with kids, having the ability to tow a trailer behind their bicycle is essential. Unfortunately for those riders, they’ve been cornered out of the new bike market, because the current 142×12 standard is incompatible with virtually all of the trailers on the market.

Luckily, the aftermarket has come up with a solution in the form of the Robert Axle Project. A company which offers four different axles, with different thread pitches, that fits over 30 of the most popular bike brands.

The axles are easy to install and require no special tools. To find out if there is a solution for your bike and trailer, head over to their website here, and choose your bike and application. Most axles retail for between $52-57 and the company offers flat rate shipping of $7.0 to the US, $24 USD to Canada, and $27 Internationally.

Robert Axle Project

Ari Bike Adds 40/42-Tooth Replacement Cogs for Shimano XT/XTR and SRAM Cassettes

Ari Bike Pignoni oversized 40-tooth and 42-tooth cogs for Shimano and SRAM cassettes

Ari Bike, an Italian maker of various aftermarket spider/chainring units and spiderless chainrings for a wide variety of crankset brands, has just thrown their hat into the oversized cog ring.

Offering three distinct models, they cover Shimano XTR M980 and XT M771 10-speed and SRAM 1030/1050/1070 10-speed cassettes. Like the others, these 40- and 42-tooth cogs sidle up next to the back of the cassette and require removal of the 17t (or 15t for some versions) cog.

Claimed weight is 70g to 73g depending on model. They come with a replacement screw for your derailleur in case a longer B-screw is needed to help the mech clear the new cog. Retail is €65, with delivery available in the US via express courier. Pics and links below…

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Friday Roundup – Bicycle Bits & Pieces

red-bull-poster

  • Red Bull Ride + Style is this Saturday, May 10th, at the Justin Herman Plaza in San Francisco, CA. More than 50 fixed gear riders from around the world will compete in track and freestyle competitions among obstacles designed and created by street artists. New this year is a race qualifier open to the public. Twenty five slots are open, first come-first served, get there early for the 10am registration!
  • Culprit Bicycles will be demo-ing their bicycles at the Cruisin’ The Conejo ride this Saturday in Newbury Park, CA.
  • Voting is now open for the Eastern region of the Bell Built grants program. Voting ends May 18th, winner will be announced May 5th. Congratulations to the winner for the Central Region: The Cottage Grove Bike Park, headed up by the Minnesota Off-Road Cyclists (MORC).
  • PowerBar has launched their Don’t Let You Stop You Tour de France Sweepstakes which runs through July 31st.
  • Snapguide, an online how-to community, has launched their bike-hack contest in honor of Bike To Work Month. From now until June 4th, upload your how-to guide on anything bike related to win up to $900 in hand made bike accessories.
  • Timbuk2 is celebrating Bike month with new colors in the Especial Raider Cycling Backpack, and two new commuter bags: the Especial Vuelo Cycling Laptop Bag $149, and the Especial Claro Cycling Laptop Messenger $139.
  • Also, Timbuk2 Facebook fans can enter the annual #ridefree Bike Commute Sweepstakes for a chance to win over $1,100 in gear: Raleigh Bicycle, Lazer Helmet, Kryptonite Lock, Portable Speakers, and the new Timbuk2 Especial Vuelo Backpack.
  • Ellsworth is celebrating the month of May with $500 off complete Evolve C, complete 29 or 27.5 Enlightenment or complete Epiphany Enduro (limited sizes) bikes – or $250 off those frames only. Also, they will be giving away free Rocker and Bling Kit upgrades on all bikes sold in the month of May.
  • Beginning May 11, fans can tune in to NBCSN daily to catch the final two hours of the 2014 Amgen Tour of California live, as well as nightly recaps and highlights. The finale on Sunday, May 18th, will be broadcast on NBC. TV schedule after the break.
  • The Documentary Marco Pantani: The Accidental Death of a Cyclist launches May 16th in the UK
  • Canyons Resort in Park City, Utah, will be opening up their family-friendly downhill mountain bike park on June 12th.
  • Rapha is sponsoring the Women’s 100 – a worldwide 100k ride on Sunday, July 20th. Find a sponsored ride near you, set up a group ride, or register to ride on your own here.
  • This Year, the Providence Cyclo-cross Festival will host a Dealer Day on Friday, October 3rd. Touted as an affordable alternative to Interbike, they had 45 exhibitors in 2013 and expect to sell out quickly for this years’ event.
  • The RoadTitans300+ Cycling Challenge is a 3 day, 310 mile, 30,000+ ft of elevation ride this November 7-9th in Oconee, South Carolina.

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Scott 3Rox Mountain Bike Team Plays Hide the Di2 Battery

Scott-3Rox-team-mountain-bikes-hidden-di2-battery05

Way back in the spring of 2012, Geoff Kabush’s Scott Spark revealed the first look at the Shimano/Fox electronic integration, using a Di2 battery to power the iCD lockouts for both fork and shock. At that time, it was pure prototype. Things got official the following April with Fox’s formal introduction, which was preceded by a second look at Kabush’s bike.

Now, the 3Rox team continues to tweak their electronic lockout set up with the new internal Shimano “seatpost” battery. Except they didn’t stick it in the seatpost…

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Updated Gear Ratios: Comparing SRAM and Shimano’s 1x Drivetrains with XTR M9000

Shimano XTR m9000 11 speed 1x 2x  3x (19)

Not too long ago, Switchback Bikes posted an excellent gear ratio comparison chart that was put together by Daryl Smith. Obviously, when Daryl put the chart together the new option packed XTR M9000 group was still under wraps, so the comparison to its 11-40 wide range cassette couldn’t be made. To keep with the times Daryl has updated his chart to include the 1x options for an XTR group.

Crunch the numbers after the jump…

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Null Winds’ Upper Wheel Fairings Blinds Headwinds with Science

null-winds-upper-wheel-fairings

Null Winds Technology has taken their Upper Wheel Fairings to Kickstarter to bring wind cheating shields to the masses.

Admittedly, they’re not for racers. And they’re different looking. But the science is interesting, so let’s have a look. Inventor Garth Magee says wind speed affecting the top of the wheel is up to 3x the speed of the headwind. That’s because the tire and spokes are all rolling directly into the wind at twice the speed of the bicycle. Of course it’s variable based on head wind speed and bicycle speed, but the power needed to overcome the drag rises in proportion to the cube of the wind speed. So, the faster the wind and the faster you try to go, the more power you’ll have to pump out for smaller and smaller gains.

His Upper Wheel Fairings block the spokes from “fanning” the wind against your efforts. Magee says the result is up to 20% more speed for a given effort…

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