Token launches threaded press-fit bottom bracket and rapid turn thru-axle

srchar wrote:

AWP wrote:

Had endless issues with press fit on my Cervelo. The only solution has been to fit a one-piece BBInfinate unit. It's not neccessarily the fitment of the cups in the frame that cause the issue it's the alignment (or lack of it) that causes the problems as there are stresses in the assembly and these stresses cause movement as the cranks turn. The BBInfinate deals with both alignment and fit issues in one hit. It's an obvious solution to the whole PF standard. I'm a convert.

Same here with my R5. One look at Campagnolo's BBRight cups is enough to see that there's simply not enough material interfacing with the frame, and no amount of Loctite would stop the cups walking out. BBInfinite is a good solution, but I didn't like the look of the uninstallation process and went with a threaded Wishbone unit instead, which works a treat. The Token design is a direct copy of this.

To all those saying that PF is fine and the creaks are loose QRs, pedals and saddles and/or that those of us with issues are hamfisted imbeciles, you've been lucky!

I've had an FSA BBright adapter (for shimano cranks) fitting to my R5 from the start and its been (touch wood!) silent....bearings still running smooth after 2years of use. The FSA unit is alloy and loads of contact area for the frame to seat in.....looks like a recuring theme with units which have solved creaking.

BBInfinate does look good but I guess that would ruin the life time guarenty ?.....mind you the FSA unit may have done the same !

srchar wrote:

 

Same here with my R5. One look at Campagnolo's BBRight cups is enough to see that there's simply not enough material interfacing with the frame, and no amount of Loctite would stop the cups walking out.

[/quote]

I don't think that necessarily follows

Although I can only speak for BB86 not BBRight, using campag's cups with the same reatively shallow fitting into the frame shell. They are properly snug,  the bearing races are firmly seated on the cranks, in the same position that campag  originally intended for U/T, with a highly torqued central bolt to join both pieces of the axle in the middle and pull both halves together.

No extra adapters, shims or any other point of contact with the shell. It just works. 

This could be a reflection of the quality of Campag's system, or the close tolerances of the frame itself, or more likely both!

danthomascyclist wrote:

Brilliant - another bottom bracket standard to confuse the hell out of me for when I want to change the spinny bits on my bike

 

It's a hole in a fucking frame - why is it so bloody complicated?

Haha!

Seems there are so many 'standards' now that there is no standard *facepalm*

cyclesteffer wrote:

Doesn't the fact that Token, plus various other companies like wheels manufacturing, and Praxis works, have had to come up with solutions to press-fit creaking, show that Press fit is a load of rubbish? Less about "stiffness" and more about enabling bike manufacturers to reduce manufacturing costs and knocking out cheaper frames? Press fit sucks.

Actually, press fit as a concept is good, the problem is in the implementation. It only takes a small difference in diameter in frame or cup size for there to be an issue, so if the manufacturers take take care, there's no problem. The issue is that a large number of frame manufacturers do not take enough care with their build tollerances.

All sealed bearing bottom brackets are in effect press fit, even the ones you thread into the frame, it's just in that in those cases the bearings are press fitted into the cups in the factory by the BB manufacturer who ensures good tollerances between bearing and cup.

I have a couple of bikes with Press Fit BBs, and have serviced many from the like sof Merida and Giant, none of which have any issues, however I've also seen a number of 'value' brands that have had endless issues.

cyclesteffer wrote:

Doesn't the fact that Token, plus various other companies like wheels manufacturing, and Praxis works, have had to come up with solutions to press-fit creaking, show that Press fit is a load of rubbish? Less about "stiffness" and more about enabling bike manufacturers to reduce manufacturing costs and knocking out cheaper frames? Press fit sucks.

I've got PF on my 2008 Scott Addict and never had a problem with it, infact I'm still using the original bb (Shimano Dura-ace) and I've done many thousands ok km on it including 2 Etapes and in all weathers,  so not all PF suck.