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I've been having second thoughts about the Alfine option on my 9zero7 so swapped it out today in favour of a 2x9 setup with XT mechs and cassette.
With the slightly lighter Husker Du tyres too, I've dropped a whole 2lbs off the all-up weight to just a smidgeon over 34lbs.
FWIW, I measured 1.65lbs of difference in the drivetrain/hub, and that's with the spokes on the replacement wheel being plain gauge, not butted.
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What you think of the husker du's?
I'll let you know when I've had a chance to ride them 🙂
You rebuilt the wheel or got a new one?
I thought alfine was barely heavier than derailleurs?
Extra wheel. That way I can switch around should I feel like it (although the Alfine may end up on a different bike now).
As for the weight difference - I can only report the results of my experiences.....
E-type front mech, medium cage rear mech, 11-34 cassette plus shifters (all XT), XT rear hub plus 2 cables vs Alfine hub and Alfine shifter plus 1 cable.
Oh. I thought there'd been a MEGA-thread here where some geezer found they weighed nearly the same.
So Husker Du's are around 0.175lb lighter i.e. 30gm a tyre?
One Husker Du weighed the same as my Endomorph. The other was slightly lighter and therefore lighter than my Larry. Overall, about 0.33lb saved in the tyres.
mmm interesting weight
my 907 is currently 30 lbs,, older frame than yours, same fork, drilled rims and heavy larrys, same bars
fitting husker du's when they turn up prob weds so will see how they fair on friday
and i thought my leccy bike was fugly........... 😉
Of course, there could be some variation in the accuracy of the scales. I know that mine made my Blur XC 2lbs heavier than it was when I weighed it in the shop 🙂 Having said that, I also weighed my wifes suitcase last week and it was spot on according to the system at airport check-in.cozz - Member
mmm interesting weightmy 907 is currently 30 lbs,, older frame than yours, same fork, drilled rims and heavy larrys, same bars
fitting husker du's when they turn up prob weds so will see how they fair on friday
ton -
Not scientific enough I'm afraid druidh... Stu McGoo off here took a 30spd SLX drivetrain off his 29er inbred, and installed an Alfine instead. Everything else on the bike was the same, no other components changed, just lost derailleurs, shifters, 2 chainrings and the rear hub, then put the Alfine and shifter on. He then weighed the bike again, and it was marginally lighter! Although it was now more rear end heavy than before. An XT setup is about 150-200 grams lighter than SLX, maybe a bit more as you've got 2x10, but you have not lost almost 2lb just by getting rid of the Alfine!
fantastic........nothing like a bit of home tinkering 😆
mboy, he's been doing well in his Big Hitter correspondence course, argue with him at your mercy.
mboy - feel free to turn up with the scales of your choice and I'll let you weigh it, re-build it and weight it again. Oh - and it's 2x9 (it says so in the OP).
from road.cc
The stated weight is now 1590g, which is 90g lighter than Shimano's weight for an Alfine 8 and less than a Speedhub too. However, we've now received a second boxed hub to go with our built up one and straight out of the box it tips the scales at 1744g, a fair whack heavier than list
Sorry, 2x9... Which is about a whole 50 grammes lighter again.
Just saying like, this has been done scientifically before... And the proof was there. OK it was Alfine vs 3x10 SLX, and XT is certainly lighter than SLX and 2 rings will be lighter still, but not almost 2lb lighter. Not even 1lb lighter I'd warrant.
And as for the Alfine being heavier than claimed, yeah I'll agree. When I had mine, weighed it out of the box, and was a smidge over 100g heavier than Shimano claimed. Didn't make the bike any heavier than it would have been with a 3x10 setup though, although it did make it slightly more rear end heavy.
Bike looks good with new drivetrain & wheels fitted 8)
Lets not get too caught up in in weights...soon as it get properly dirty it will weight least 10lbs heavier with mud/sand/sh1te anyway 😉
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Mr McGroo weighed his bike, changed the components and weighed it again. I have now repeated the experiment and we have two data points.mboy - Member
Just saying like, this has been done scientifically before
Unfortunately, he was using an 8-speed Alfine, heavier components (SLX rather than XT) and 3x10 rather than 2x9......
On a different tangent, did you tinker with the lubricant in the Alfine to decrease resistance, and if so, what did you do? I'm about to fit an 8 to my 29er but have misgivings about the drag reported by others on here.
Interested in the Alfine lubricating as well. I don't notice any drag from my Alfine8, and thats going from a singlespeed set up. In fact, you can't really tell it apart from the singlespeed, except for the extra weight and the fact the speed is not limited by my legs. It still feels like a singlespeed due to the absence of chain slap/mech clatter.
It is secondhand though so it may have been fettled already, though unlikely. I've heard comments about converting it to an oil bath like the 11, but surely grease seals would not be enough to keep the oil within the hub?
I had my alfine dipped in shimanos majic oil. Deffo runs smoother and less draggy but still more drag than a conventional setup I believe
How is the hub regreased? Manually, or does the 'majic' oil dip re-coat the internals in some type of liquid grease?