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Dragshock™ / Dragshock EZ™ Suspension Demonstration

Brock's Performance president, Brock Davidson, an avid performance enthusiast and past national championship winning rider as well as tuner, explains how to adjust the rear suspension on his BMW S1000RR 'Christine' for drag race use. Follow along as he explains how the rebound dampening functions as it relates to the launch and down track acceleration between himself and his lighter 'jockeys'. Note: At 9/16th sag using a 95 Newton (542 lb.) spring with a 150 lb. rider in the saddle, a rear tire pressure of 12 psi is used. Brock's weight of around 210 lbs. suited brings the sag to 1" and a tire pressure of 18 psi is used. The bike squats a bit more than optimum, which means the spring preload should be increased a bit, or the spring rate might need to be increased -- BUT, the object is for this bike to be as fast as possible with the smaller riders--not tuned for him--so only tire pressure adjustments are made. Slick track = more rebound dampening added, more squat for more traction. Less tire pressure, if possible. Sticky Track = more spring preload, less squat, more tire pressure... although light riders tend to spin, so lower pressure is generally used. (see Jeremy's run at beginning of video, it is very close to perfect.) Bumpy Track = If the racing surface is exceptionally bumpy, the rebound dampening must be reduced (example adjust from -15 clicks to -20 clicks) to prevent high speed 'oscillation'. Stock or Short Wheelbase Applications = Stock/Short wheelbase bikes do not require as much 'squat', because they are not as prone to spinning. Since more squat leads to additional traction, this can also cause stock wheelbase bikes to wheelie. As a result, we would have a bit more static spring pressure dialed in, with more compression dampening and less rebound dampening (to force the front end back down as the rear rises). Special thanks to www.dragbikelive.com for the video coverage. Also note: This advice applies to all makes and models. The BMW S1000RR shown was simply used as a handy example for this particular video. Spring rates will differ between makes/models. Visit http://www.BrocksPerformance.com for additional information, installation instructions, information forums, and FAQ sections.


 


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Procedures/Efforts used to increase the Will Torres BMW S1000RR power from 176 RWHP to 198 RWHP (SAE SCALE) • Drained Fuel and replaced with VP MR12 • Drained Oil and replaced with Alisyn Less Than Zero Weight Full Synthetic Motor Oil with Petron Additive • Went for 10 mile ride (before Dyno session) to allow Petron to penetrate metal • Removed aftermarket street style air cleaner, and installed OEM air cleaner (Suggested Filter for Peformance Gain: http://www.brocksperformance.com/KN-Race-Air-Filter-BMW+I401023+C298.aspx ) • Cleaned chain with Motul Chain Clean • Lubricated chain with Alisyn Chain Lube • Removed noise reduction plug from Exhaust • Re-installed Brock's Performance CT Single Map in Dynojet PCV • Adjusted chain to proper tension Visit http://www.BrocksPerformance.com for additional information, installation instructions, information forums and FAQ sections. To read this entire story on BrocksPerformance.com with more info.: http://www.brocksperformance.com/brocknm/templates/bpp1.aspx?articleid=432& zoneid=22





Honda Grom Stock to Brock ~ Part 1: Brock Crashes New Grom!
Brock's Performance president, Brock Davidson, an avid performance enthusiast and past national championship winning rider as well as tuner, takes you along as he explores the performance boundaries of the new Honda Grom. Follow along as he explains his initial impressions of this hot new seller and see what type of performance gains he can pull from this sporty little 125cc motorcycle. Also, see the importance of proper safety gear as this champion drag racer takes a fall on the Competition Accessories Honda Grom. http://www.compacc.com/ Check out our Honda Grom (2014) information page for more information on the products available for this model: http://www.brocksperformance.com/brocknm/templates/bpp1.aspx?articleid=655& zoneid=25 Visit http://www.BrocksPerformance.com for additional information, installation instructions, information forums, and FAQ sections.





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RSV4 vs S1000RR vs 1199 Panigale S vs F4R - European Liter Bike Shootout! On Two Wheels Episode 9
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Honda Grom Stock to Brock ~ Part 2: Power Increased by 20%
Brock's Performance president, Brock Davidson, an avid performance enthusiast and past national championship winning rider as well as tuner, takes you along as he explores the performance boundaries of the new Honda Grom. Follow along as he explains his step by step process of extracting power from this motorcycle using bolt-on products. See the advantages of a Brock’s Performance Exhaust system, Power Commander V with mapping and airbox modifications. Check out our Honda Grom (2014) information page for more information on the products available for this model: http://www.brocksperformance.com/brocknm/templates/bpp1.aspx?articleid=655& zoneid=25 Visit http://www.BrocksPerformance.com for additional information, installation instructions, information forums, and FAQ sections.





Two Clicks Out: Suspension Changes for Different Tracks
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Honda Grom Stock to Brock ~ Part 3: Fact or Myth; Ceramic Wheel Bearings
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