Eccentric BB on Tandem and external bearings

[Guest Big H]

I have a MTB tandem with a Shimano Octalink BB. This must be the worst BB anybody ever made in the world.

 

I am considering a Truvativ Firex MTB crankset as a replacement. They have external bearings. Is there enough space between the External Bearings and the BB Shell on the eccentric BB shell. See the Picture below.

 

[dirtrider]

Looks about right .

[Mudsimus]

I agree with the ocatlink comment. Those BB's are shockingly crap. The external BB's will work.

[Thug]

Why not look at a Bushnell EBB or a Carver. Probably the best EBB's on the market at the moment.

 

 

[Guest Big H]

Why not look at a Bushnell EBB or a Carver. Probably the best EBB's on the market at the moment.

 

Are these cranksets or just external BB's. Remember the Big H and Em are just run of the mill cyclists and we do not really need the "best on the market" We need something dependable, not something that packs after less than 3000km.

[dirtrider]

Hu ?

[fandacious]

Why not look at a Bushnell EBB or a Carver. Probably the best EBB's on the market at the moment.

 

Are these cranksets or just external BB's. Remember the Big H and Em are just run of the mill cyclists and we do not really need the "best on the market" We need something dependable' date=' not something that packs after less than 3000km.

[/quote']

 

no offense, but how many km a month do you ride?

[Guest Big H]

Why not look at a Bushnell EBB or a Carver. Probably the best EBB's on the market at the moment.

 

Are these cranksets or just external BB's. Remember the Big H and Em are just run of the mill cyclists and we do not really need the "best on the market" We need something dependable' date=' not something that packs after less than 3000km.

[/quote']

 

no offense, but how many km a month do you ride?

 

Why have you got another solution??????

[Thug]

Bushnell & Carver are both Eccentric BB's and any normal (English thread) BB will fit (eg Shimano LX/XT/XTR).

 

http://www.bushnelltandems.com/

 

 

 

[fandacious]

Why have you got another solution??????

 

nope. but was just thinking - no need to overspend on something thats beyond your requirements - of hoe?

[Guest Big H]

Why have you got another solution??????

 

nope. but was just thinking - no need to overspend on something thats beyond your requirements - of hoe?

 

Ek het so bietjie na ons log gaan kyk en op die stadium is dit niks fenomenaal nie...... ons doen so 900km per maand. Dit is egter met meer as 50% op van laas maand toe ek die artritis aanval gehad het. Ons oefen gaan egter heelwat toeneem as ons terugkom van RSA af. Ons gaan begin met die Carmicheal Oefenprogram asook core strenght oefeninge.

 

Overspending het baie gesigte. As ek en Em hier in die bos gaan staan kan ons dalk doodgaan van die honger. Gister toe ons gaan ry het het ons 50km gedoen. Daar het net drie voertuie by ons verby gekom en jy sal nie altyd weet of hulle vriendelik is nie. Waar ons omdraai is daar nie eers selfoon ontvangs nie.

 

Betroubaarheid tel baie meer vir my.

[dirtrider]

LX

[fandacious]

900km / month?? hell - you probably ride more than most of the hubbers here.. thats actually quite a lot!

[Guest Big H]

Bushnell & Carver are both Eccentric BB's and any normal (English thread) BB will fit (eg Shimano LX/XT/XTR).

http://www.bushnelltandems.com/

 

I had a look at their website and I am very impressed with their design. The wedge that splits the BB will not lead to ovalised BB's as is the case with the one I pictures above that uses two large grubscrews. Where can I get these eccentrix and what do they cost? The Truvativ BB's has the same thread as the Shimano external BB's I assume?

 

Do you know who the Truvativ agents in RSA is?

[Guest Big H]

LX

 

Huh??????

[Thug]

No idea who the local agents of Bushnell are (if in fact they have any).

 

http://www.novacycles.com/catalog/advanced_search_result.php?keywords=bushnell

 

The local agents for Truvativ must be the same dudes who bring in SRAM.