Disclaimer: Not for the carbon averse....
10-16-2014, 10:25 AM
#1
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Disclaimer: Not for the carbon averse....
Thought I would share some "home pictures" of the Dymag CA5 wheels all readied up to be installed over the winter. Front rotors are the famed Braketech CMCs (front wheel is stupid light!!!) and the rear is sporting a lightweight rear rotor that started life aboard a BSB Triumph Daytona 675. Tire valves are Ariete 90-degree aluminum valves in red......
Before someone pulls a "Captain Obvious", more bolts need to be added to secure the rotors (this is just a test fit), and those will be black titanium units that are presently doing duty on my current PVM rims....
So, coming soon to a VTR near me, he he..........
Before someone pulls a "Captain Obvious", more bolts need to be added to secure the rotors (this is just a test fit), and those will be black titanium units that are presently doing duty on my current PVM rims....
So, coming soon to a VTR near me, he he..........
10-16-2014, 02:35 PM
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bike is a daily rider (or whenever I can get out) and the wheels are said to be tougher than anything made of aluminum or magnesium. As for the brake pads, I will be using what was recommended by Braketech (and was used by previous owner), Ferodo XRACs.....
10-16-2014, 04:20 PM
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FWIW, here are the weight savings I was able to calculate from this set-up:
- rims: 15.5 lbs
- front rotors: 3 lb
- rear rotor: 1 lb
For a total of 19.5 lbs of spinning weight (now it's actually higher than that due to 520-pitch Al rear sprocket, titanium rotor bolts and ceramic hybrid bearings), or pretty well right at 50% reduction (with an even greater reduction in MOI due to weight distribution of rims). Handling and braking benefits aside, I have read that the rims alone produce a gain in acceleration that is roughly equivalent to 5+ extra hp......
- rims: 15.5 lbs
- front rotors: 3 lb
- rear rotor: 1 lb
For a total of 19.5 lbs of spinning weight (now it's actually higher than that due to 520-pitch Al rear sprocket, titanium rotor bolts and ceramic hybrid bearings), or pretty well right at 50% reduction (with an even greater reduction in MOI due to weight distribution of rims). Handling and braking benefits aside, I have read that the rims alone produce a gain in acceleration that is roughly equivalent to 5+ extra hp......
10-17-2014, 07:43 PM
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10-24-2014, 04:32 PM
#23
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Yellow was legal in Canada, though curiously the metallic blue (as mine) apparently was not in the US....... funny that....... I wonder if the wacky religious right found it offensive??????
Last edited by mikstr; 10-24-2014 at 04:38 PM.
10-24-2014, 04:34 PM
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thanks. There will definitely be an improvement in all aspects of performance and handling, but truthfully my current magnesium PVM wheels already have me halfway between these and a stock VTR......
10-26-2014, 07:35 AM
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You are really trying to squeeze every bit of performance out of the VTR 
. Just to get an idea, when you mounted the PVM wheels how much the handling and acceleration improved? Did the bike feel significantly lighter in the quick left/right switches? Does it accelerate faster coming out of a turn?
It's an expensive mod, I just wonder if it pays back
10-26-2014, 02:58 PM
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My goal is to build the ultimate street-going VTR (for my particular use; so I want it to handle well, stop on a dime, be comfortable, and have a strong and responsive mid-range). I have addressed all of the bike's known weaknesses (CCTs, R/R, brakes, cooling, suspension,....) as well as made it a better performer for the things I use it for (essentially sport-touring). There are certainly some other VTRs out there that are as good, or better, but I own this one and it's built for my preferences. For example, I could easily swap out a few parts (velocity stacks, for example) and get it to run stronger on top-end, but I very seldom run it over 7k rpm, so why bother? It does what I want it to do, and does it damn well at that
As for the effect of the PVMs, I have been running them for so long now that I can't make an objective comparison (especially as I never swap the stock wheels back on to see). However, as the PVMs are about 9 lbs lighter, they simply have to be an improvement (the physics dictate it be so).
As for the effect of the PVMs, I have been running them for so long now that I can't make an objective comparison (especially as I never swap the stock wheels back on to see). However, as the PVMs are about 9 lbs lighter, they simply have to be an improvement (the physics dictate it be so).
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