RaceFace 100mm BB

[woody_8_5]

Pictures are of the RaceFace Team XC BB that came with my Fat Turbine Crankset and the RaceFace Team DH BB. When the XC inner sleeve was put on the DH BB it ended up being the same length as the XC BB with its original sleeve. The DH BB and the XC BB are both 127.5mm in length when using the XC sleeve. The major difference in the 2 BB's is the DH BB shell is a lot deeper with more cup threading into the frame, the added length of the shell is nice with 2 spacers on the drive side and should improve overall strength.
Cheers


XC (left) 127.5mm / DH (right) 118.8mm

XC sleeve 86.9mm / DH sleeve 78.1mm

Measurement below is the cup threads.
XC 14.6mm / DH 19.8mm

XC sleeve for 100mm BB is machined aluminum not plastic like the DH sleeve

[nvphatty]

Based upon what i see it makes perfect sense.

[Leopold Porkstacker]

I’ve been running the team DH BBs for over 3,000 miles of fatbiking. The first one started to develop a noticeable grinding/draggy feel to it after 1,800 miles, but that was because I was constantly dunking it in the sludge/puddles and riding it throughout the rainy season.

[Om Flyer]

@ Woody, How are the Turbine's working out? Any reviews or pics? Thanks!

[woody_8_5]

I should have my Beargrease frame set in the next week or 2 and will be able to give a better review of the cranks after I have a few rides on them. RaceFace moved the chain line out on all of their Fatbike crank sets so these are not your average Turbines with a 100mm spindle pressed in. I had nothing but problems with last years e.13 crank set. BB issues that was fixed by putting in a Enduro BB and after fixing the BB problem a few months later the non drive side crank arm started to develop play on the spindle. I sent the crank set back to e.13 for warranty replacement and they sent a new crank set back after inspection, good customer service with e.13. I ended up selling the new e.13 cranks and this ended up paying for the new Turbines. I had a chance to look at the new e.13 double crank set out of this years Muk2 and was not impressed, especially with the plastic bearing pre load system. The RaceFace cranks look very solid and well made so it will be interesting to see how they hold up compared to the experiences I had with e.13.

Cheers

[smthgfshy]

Could you please give us a weight? Cost?

[woody_8_5]

I have never been a guy that counts grams or made purchases based off them. I have a few things to do at the LBS tomorrow and will get the total weight of this set up. Not going to post what I payed but here is MSRP cost for everything.

100mm Fat Turbine crank arms with Team XC BB - $200.00

Team DH BB - $49.00

RaceFace 32t Light Bash Guard-$35.00

10 speed 32t Turbine chainring-$44.00

10 speed 22t Turbine chainring-$25.00

Chainring bolts-$12.00

Total-$365.00

[Om Flyer]

Brilliant pics, Thanks! Way better than the RF site.
I'm trying a pair out as well(when they arrive), I opted for 24/36/Bash config. and I guess I'll start with the XC BB but the DH BB looks like the bomber set-up. Both spindle and crank arm machining looks stellar, thanks again for the info and pics.

[dotMR]

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Pictures are of the RaceFace Team XC BB that came with my Fat Turbine Crankset and the RaceFace Team DH BB. When the XC inner sleeve was put on the DH BB it ended up being the same length as the XC BB with its original sleeve. The DH BB and the XC BB are both 127.5mm in length when using the XC sleeve. The major difference in the 2 BB's is the DH BB shell is a lot deeper with more cup threading into the frame, the added length of the shell is nice with 2 spacers on the drive side and should improve overall strength.

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I'm not sure I understand. As pictured, are the BBs intended for different shell sizes? The Team DH BB (on the right) says for 100mm shells but looks notably narrower than the Team XC as pictured. Or does the Team XC rely on more spacers?

[JoeG]

I second dotMR's confusion...

[woody_8_5]

I'm not sure why there is are difference in lengths with the 2. All is care about is the DH BB ended up being the same length as the stock Team XC BB that came with the crank set. I ordered the DH BB at the same time as the cranks and when I saw the difference in length I had a WTF moment until I tried the swap and took some measurements. If the stock sleeve in the DH BB was used it would bearing meet up with the other cup and after a few spacers I'm not sure if it would.

[roobydoo]

AFAIK The DH is narrower to allow for more adjustability. The XC assumes full width with required spacers. It may simply come down to Raceface assuming a certain amount of room/play was needed for the DH, and then by the time they made the XC, they realized it was unnecessary and took out the slop in the spacer and made the cups lighter/cheaper for XC.
I have the DH version, and it went together just fine regardless.

[dotMR]

Thanks for the info. Was the goal of running the DH version (rather than the XC that came with the cranks) extra thread engagement in the cups?

[woody_8_5]

Thanks for the info. Was the goal of running the DH version (rather than the XC that came with the cranks) extra thread engagement in the cups?

Yes running the DH for the extra thread engagement in the cups was the goal. Total weight of complete crank set with the DH BB - 935.53 grams.

[Borgschulze]

RaceFace DH BB didn't play well with my Fatback frame.. some thread got mangled from the chainstay holes in the BB shell... it threads in okay, just has a bit of resistance.

[nvphatty]

Yes running the DH for the extra thread engagement in the cups was the goal. Total weight of complete crank set with the DH BB - 935.53 grams.

thats right about the same as my atlas.

[damnitman]

Are the drive side splines compatible with Isis?

[woody_8_5]

Are the drive side splines compatible with Isis?

Not sure about compatibility but it looks just like Isis

[smthgfshy]

Yes running the DH for the extra thread engagement in the cups was the goal. Total weight of complete crank set with the DH BB - 935.53 grams.

Thanks for the weight. Seems a bit heavy though as that's only slightly lighter than my Atlas (arms, DH bb, 34t, & bash = 965). I was expecting something like 875 +/-. Yeah, I'm a weight weenie....

I'd love raceface to throw something out there that would give e-13 a run for their money.

[bjfalken]

Are the drive side splines compatible with Isis?

definitely not isis. the whole point of external cups is a bigger spindle diameter. x-type big, isis little. like hollowtech2 vs octalink.

[JoeG]

Race Face Aluminum - EXI cranksets feature the industry standard ISIS Drive spline for the interface between the RH crank arm and
the BB spindle.

That is from Race Face's crank installation instructions http://www.raceface.com/comp/inst/B1...I_Crankset.pdf I believe that Hammerschmidt cranks use the ISIS spline pattern on one side as well.

It is irrelevant, though as current Race Face cranks all have the spindle pressed into the non-drive side crank. It isn't removable (well, not unless you destroy the crank!) Thus they have to be used with an external cup BB from Race Face or another manufacturer.

An ISIS BB had the spindle as part of the BB and the cranks bolted on to each end like this

ISIS cranks both had a 10 spline interface that attached them to the BB with a bolt along the spindle axis. This is a good view of the 10 spline pattern on both the drive and non-drive cranks

[montana_ben]

Thanks for the weight. Seems a bit heavy though as that's only slightly lighter than my Atlas (arms, DH bb, 34t, & bash = 965). I was expecting something like 875 +/-.

Turbine with stock bb cups, set up is 1x (32t) & bash. So far so good...

[woody_8_5]

Thanks for the weight. Seems a bit heavy though as that's only slightly lighter than my Atlas (arms, DH bb, 34t, & bash = 965). I was expecting something like 875 +/-. Yeah, I'm a weight weenie....

I'd love raceface to throw something out there that would give e-13 a run for their money.

Heading to Minneapolis tomorrow morning to pick up my 45NRTH boots. I will get a more accurate weight on the cranks when I'm there. Not convinced that the weight I posted today is correct, old scale and I needed to covert the weight to grams. Your e.13 comment I assume you are talking about weight not durability.

[smthgfshy]

Turbine with stock bb cups, set up is 1x (32t) & bash. So far so good...

Yuppers!! That's more like it!! Now we're talking!! Thanks for posting that weight!!

[bjfalken]

" I believe that Hammerschmidt cranks use the ISIS spline pattern on one side as well."

Hammerschmidt uses a proprietary Hammerschmidt standard of b/b spline, different again. The Hussefelt and a few other cranks uses a different one again: its like a beefed up isis. truvativ does make isis and howitzer b/bs for 100mm b/b shells though.