what are the pros/cons of the following options:
a) metrigear vector (pedal based - expected to market sometime in 2010)
b) powertap (rear hub based)
c) srm dura ace 7900 compatible standard crank (crank based - note i have a compact and would see a standard as a positive)
my analysis attributes include:
any input is appreciated. thanks in advance.
easy decision then.
if you already have an ANT + and want wheel changes whenever, then rule a powertap out.
that leaves SRM and metrigear on your list. metrigear i wouldnt buy just yet, as its first version. they will have some growth to do. SRM are expensive, especially for wireless ANT+ models. they also require about 150.00 in maintenance per year on batteries.
with all this b eing said, quarq is the way to go. priced like a powertap, but quality and ANT+ like an SRM, its a great item. you can even use your existing cranks. weight penatly is somewhere aroudn 150 grams, so quite light. battery replacement is capable by you and yo ucan use your ANT+ headunit you already have. Quarq is also capable with wko+ and training peaks.
i am not saying anything bad about SRM, as the only issue is battery replacement, and you can time that over the winter usually. but for twice the cost, i just dont see it worth it. i have 2 SRM units myself, and love them, but if i were to do it all over agian, i think the quarq is the best setup on the market curently. price and ANT+ reasonings (i have wired SRM's for budget reasons). i may sell my SRM's and go for quarq this season.
EDIT: i take that back, no shimano cranks supported. in this case, i would sell your 7900 carnks and pick something they have. or , if you are lucky enough to be on bb30, you have a few options (cannondale, specialized).
cswi9367 wrote:with all this b eing said, quarq is the way to go. priced like a powertap, but quality and ANT+ like an SRM, its a great item.
The cheapest I can find a Quarq Cinqo is £1200 (and even they don't actually have), whereas Powertap rear wheels start at around £600.
http://www.5339.co.uk/coming-soon/sram- ... rmeter.htm
When I first saw some online reviews of the Cinqo, I was quite tempted when they kept saying (like you) that they were priced similarly to a Powertap - but they look like twice the price to me.
if the price of powertap unit is that much cheaper, i would go that route if you are trying to save some cost. maybe you can get a powertap hub built into your edge wheels. that might be your best bet for the cost.
all my teammates use powertaps, and i have never heard of bearing issues or anything going wrong with them, so i would consider them.
i guess it all comes down to cost and what yo uwant to spend.
- Tinker, Taylor, Tart
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I'm just waiting for the Quarq Cinqo to come out for the Rotor 3D compact spider, then that's the option I'll most likely take.
SRM Wireless - Works great now that they fixed the PC boards.. Very, very, very expensive. Limited crankset choice.
Quarq - Works great and much better price point than SRM. Limited crank choice. I just got my SRAM 900 / Quarq and it's working very well indeed. Quarq is the best deal in crank power IMO.
Metrigear - you can't buy it yet and probably won't be able to in time for your 2010 season. Looks to be great, hope they make it and they become available someday. I can't wait to put these on my WW bike.
PT Hubs - rock solid, work great, reasonable cost. But this only works if you are absolutely OK with one wheel choice or owning mupliple PT wheels because once you have power you will want it 100%. My wife has one PT wheel for her road bike and one for her TT bike. Both wired, total investment about $1000. She trains 'em, races 'em and she couldn't be happier. Me, I like messing with wheels so I wanted crank power.
iBike Pro - it's not real power per see (meaning no strain gauges) but it may well be good enough and is a lot cheaper. Worth looking into as part of your survey of what is available. Pez and I think a couple others were positive on iBike on a recent thread in the road forum.
Good luck, just pick one and go train.
as for metrigear, i'll wait and see. i'm not a huge fan of speedplay pedals. i prefer dura ace due to the larger platform. although, i guess if i was a true WW i would go for lighter vs. other preferences
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