-Anyone have one long term? How are they holding up?
-Do they feel stiff? They tested low in the stiffness test from fairwheel.
I just cant see spending +$1k on THM. The frame will have a BSA bottom bracket. Also are their BB proprietary? I have a threaded hawk racing BB386 BB (30mm bearings in a standard BSA cup) Would this be compatible with the lightning crankset?
Courir c’est mourir un peu
otoman wrote:I have had two sets, one with a P2M on various BB30, OSBB frames and another on a Quarq Cinqo on BSA and now BBRight frames. I have had them for 3 and 5 years I think. They are great. Very light weight and stiff. I can't detect any crank arm flex (never have in any crank though). The weak point is the pinch bolt that tightens the NDS collar in place. Be careful with it. One of my Lightning cranks never needed adjustment, the other needed more and creaked until I Loctited the collar in place. After that it was all good. Their website is the pits but you can find what you want. Finally it is effectively a BB386 crank... I did use an FSA BB30 to BB386 adapter for a while with it and it did just fine. I'd recommend the cranks.
When I talked to them about the BB they said to use their BB because it has narrower bearings? Doesn't sound like my Hawk racing BSA>BB386 cups will work. I think they are going to be my crank of choice though. Plus they are made in the USA which is a plus. My other choice was the extralite qrc-2, which looks great but heard that the FD can be a pain to setup because of the super low q factor.
Courir c’est mourir un peu
That being said, I would get a set of lightning cranks again for my next build, since THM M3's are getting harder to find these days. I wonder if THM stopped making them for something new they may be brewing up?
I had (2) gripes about the lightning cranks which are easily fixable. (1) The chainring spider can come loose, so you have to use loctite to secure it. This is a source of creaking if you don't loctite it down and it can come loose. (2) The qfactor is stupid narrow, so you can easily scratch the cranks with your shoes, but this is easily solved by purchasing the washers to space the pedal spindles outward or getting longer spindles from your pedal brand.
All in all, I would run them again and I recommend only running their BB. The ceramic version is butter smooth!
Most likely working on things with 3T. I think this is a good combo of manufactures.
THM can make products in larger batches, and now have the support from a huge company like 3T.
http://www.starbike.com/en/extralite-qr ... -crankset/
Looking at it like this the Extralite seems ridiculously narrow. Very nice for an aero profile but I'm having a hard time believing the width. Shimano seems to be about 146 mm.
I wanted to lose grams so I started running Lightning and THM cranks. I wouldn't run AX Lightness/Extralite cranks. Both have been tested and the results don't fair well..
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