View Full Version : E-Bike Wins Death Race 2011

Desert Rat
04-22-2011, 04:21 PM
Electric Motor Assisted Bicycle WINS Death Race 2011 April 16th

Death Race is a motor Assisted Bicycle racing and rally event held several times a year at Musselman Honda Circuit (P1 Kart Circuit) in Tucson,Arizona.

P1 Kart Circuit - Home (http://www.p1kartcircuit.com/)

Just recently Electric bikes have started competing in Death Race against gasoline assisted bicycles. And this year #19 Paul from Oregon came in first place overall with his electric mountain bike.

Paul's electric bike was able to beat some of the fastest bikes at Death Race with 5 and 9hp gasoline engines. Paul's simple and light weight electric bike which from what I understand was around 4hp was awesome to see on the track. I will have more specs of Paul's bike when I get the facts.

Here are some photos of the winner and his bike. Congratulations Paul!, well done.


1st place Paul Oregon Electric Bicycle
2nd place Alex Arizona Gasoline Bicycle
3rd place David Arizona Gasoline Bicycle

Desert Rat
04-22-2011, 04:31 PM
Death Race 2011 Videos and Photos

Photo links....

Spooky Tooth Death Race (motorized bicycles) - mikephotos' Photos | SmugMug (http://mikephotos.smugmug.com/Bicycles/Spooky-Tooth-Death-Race/16656697_PprrM8#1255730096_CK6qGJX)

Death Race April 2011 pictures by MotorAssistedBicycleRacingRally - Photobucket (http://s1227.photobucket.com/albums/ee428/MotorAssistedBicycleRacingRally/Death%20Race%20April%202011/)

Videos links...

YouTube - Death Race 2011 Main (http://www.youtube.com/watch?v=y1leG-fcDzg)

YouTube - Death Race 2011 Heat B race 1 (http://www.youtube.com/watch?v=zfmLdahQ-Tk)

YouTube - Death Race 2011 Heat Race A, race 1 (http://www.youtube.com/watch?v=eYLnavlxXRk)

YouTube - Main Event - fish-eye view GOPR0388.MP4 (http://www.youtube.com/watch?v=eZtPwlJXKv4)

Desert Rat
04-22-2011, 05:31 PM
Paul winner of Death Race 2011 stats...

12 laps in the main event, 0.79 mi laps, starting voltage 76.1v (4.23 v/cell), Vmin 66.7, Amax 56.7, maxS 44.3, Ave S. 31, 6.8ah 483wh consumed, 47 wh/mi.
1.7:1 8mm pitch, 15mm width primary belt reduction with ENO hidden inside 48T pulley, 6.15:1 219 chain secondary, sprocket on rotor mount of hub, total reduction 10.5:1, Turnigy 130kv 80/100 with external halls at 17.1degree spacing
ebikes.ca 40 amp 12 fet infineon, modified resistors for high voltage, and shunt soldered about 15-20% of its length
Secret lithium ion pouch cells 18S2P, 20ah x 66v.
Bike weight unknown, but we guessed 60-65lbs.

Desert Rat
04-22-2011, 07:08 PM
Few more photos of E-bikes @ Death Race 2011

Photo 1 #58 Dan from New Mexico with his front hub E-bike

Photo 2-3 #40 Todd from Michigan with his 2 electric motor E-bike