southern rider

Ok I have pulled my hair out trying to figure what will work. I am building an older Klein Quantum II, the bottom bracket which turns fairly smooth is square taper with pressed in bearing. The length of the spindle is 108 mm. it protrudes 15 mm on the crank side. it appears the rear stay is about 128-129mm at the hanger. Does this mean the spindle is for campy or shimano? I would really like to build it back for 9 or 10 speeds and since the rest of my stuff is shimano .... Before I broke down and parted out this bike it was mix-matched and shifted like crap. Front cranks were campy with older 7400 series 8 speed rear der. Front der always rubbed some of the gears. Since I have sold off most of the groupo I am open to building it back right. I saw a newer FSA Vero square taper crankset, will that work?

AEO

if the axle is 108mm, then I would say it's shimano, as 107mm is what is used for shimano road double cranksets when used with road frames.

southern rider

Thanks for helping me!
does that mean I really need to build it back with 7402 stuff, or can I get something like the FSA Vero and build back with newer 7700 or 7800 Shimano Rear der, and shifters?

AEO

FSA vero? I've had the compact version and I think I used 110mm axle for that, but it was on a cross bike, so 107mm should be what it uses for road.

I'd wait for a second opinion before purchasing anything.

Can you pull out the axle for the BB? A shimano axle would have shimano etched on it.
If it's a cartridge BB, then there should be a sticker on it.

southern rider

unfortunately I don't have a tool / or a clue on how to pull it out. Is there an octolink axle that works with pressed in bearings? If so, that would allow me to step up to the 21century. Currently the axle and bearings are buttery smooth and hate to replace them.

TimeTravel_0

https://www.reset-racing.de/

See the BBS Klein section.

ArthurIhde

Hmmmm,thanks guys.That's useful to me.

rccardr 

If you want to keep the square taper BB (and I'm that kinda guy myself) then an FSA or Truvativ quare taper crankset- double, triple or compact- will work with newer Shimano 6500/6600/6700 FD/RD combos and 9 or 10 speeds. Easier for me because I work only with DT shifters, but should be the same for brifters as long as you keep the shifting groupset matched. I used a Truvativ compact 50/34 crankset with a square taper BB, 9 speed Ultegra/OpenMavic, and the latest Shimano 105 FD/RD on my Tempo with D-A DT shifters and it's just...magic.

fietsbob

Yea , need is low profile stuff that is made to use the BB length you have .

see if the prospective crank sells with a recommended BB spindle length
like what you have already in the frame.

NB, Phil spec bearings are made to swap with the Klein installed ones.
they are made to use Phil's axles, which are in abundant lengths.

Bianchigirll 

this looks GREEK to me!!

but they look like nice parts. do they make some thing for stripped BBs?

TimeTravel_0

german, actually.

https://www.reset-racing.de/reset/inn...m#bbscartridge

for a stripped bb shell, I'd go with a threadless bottom bracket if it's english/ISO.

southern rider

great idea!

Bezalel

if you want to keep the BB than you need to also determine if the square taper is ISO or JIS. Campy cranks use an ISO taper, Shimano and FSA use a JIS taper. (They can often be interchanged but will add or subtract about 4.5mm from the chainline.) https://www.sheldonbrown.com/bbtaper.html

peripatetic

Spindle.

fietsbob

Given Klein is German for small, wonder if Gary was compensating by making Big Tubed frames,

Bezalel

Here is the Klein Technical Manual. Thay used the same 108mm spindle for Shimano and Campy (except pre 1995 Athena) cranks but positioned the spindle differently for different cranks (see page 24).

southern rider

Great resource this is the first time I have come across the Klein Tech manual. Ok then my measurements were pretty close I came up with 108mm spindle I assume the 108x14 means the "x14" is 14mm for the gear side crank? I seems that shelton brown had referenced the left side (non gear side) which is it? Just to complicate it the left side (non gear) measures 18 mm. and the reference chart of the above Klein Technical Manual, says Campy is 108x18 - still pulling hair out

southern rider

Pics just to give us something to look at, also there is still plenty of hair left to pull out

southern rider

nevermind here are the pics, hey how did he get in here

Bezalel

The manual indicated that the measurements are for the non-drive side. This seems to indicate that your bike was originally Campy equipped or whoever installed the crankest had access to the manual.

Road Fan

It seems we need to know what model and year the OP's bike is. The manual shows the BB designs to be rather unique, as far as I can tell. Is the bike old enough to be covered by the manual?

Square taper Campy cranks can be put on certain non-campy BB spindles, but are best with the ISO or Campy-design taper.

southern rider

I am guessing the age to be right at '96 but here is the serial #: 55L1293209