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28 Questions : 28 Answers

Q&A for Bottom Brackets category

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Age: 45 to 54
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6 months ago
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AYLESBURY,GB
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Answer: 
The 2012 Trek came origionally specified with a Shimano M552 chainset. These use the Hollowtech external bottom brackets, two options are soon below.

The bottom bracket is very easy to change and can be done with the below tool. You simply loosen the two pinch bolts and remove the pre-load bolt from the left hand crankarm. The chainset will slide off allowing you to change the bottom bracket.
6 months ago
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Answer: 
I used the bb51 and it failed after a few hundred miles.

Very poor.

I would avoid any of this style BB, even the expensive ones seem to have poor reviews (once people have used them for a bit).

I would stick with one of the other BB designs. I had an octalink (i think) that lasted 6k+ miles, that i replaced as i could not get a new crank set i that would fit it any more…
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5 months, 2 weeks ago
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Okehampton,GB
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Hola, tengo unas bielas con sistema BB30 y quiero montarlas en un cuadro con sistema de pedalier de rosca 137,24.
Existen los adaptadores? Si son tan amables me indican qué ´piezas y en su caso los códigos debo comprar para poder montar las bielas en el nuevo cuadro. Es una bici de mtb
Quedo a la espera de sus noticias.
Gracias y un saludo.
Age: 45 to 54
Gender: Male
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7 months ago
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Badajoz,ES
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Answer: 
Lamentablemente si tienes un sistema BSA (Standard Thread) no podrás montar el sistema BB30.
Te recomendamos comprar unas bielas BB30, encontraras muchas opciones en nuestra web!
Saludos!
7 months ago
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Age: 55 to 64
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6 months ago
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STOKE-ON-TRENT,GB
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Answer: 
An E-Type Octalink bottom bracket has a larger collar on the drive-side cup to enable use with bottom bracket mounted (e-type) front derailleurs or chain guides.
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5 months, 4 weeks ago
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addapter Z0 crank in a BSA BB frame

want to use my 3x10 X0 crank in a moutainbike frame BB Type : BSA English Thread, is it possible whith any adapters?
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5 months, 3 weeks ago
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Answer: 
To fit your XO crankset (GXP only) in a standard threaded BB shell you will require a 68-73mm GXP bottom bracket as linked below.
 
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5 months, 3 weeks ago
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Or what Shimano BB is compatible? Is the Saint ok?
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4 months, 3 weeks ago
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Coulsdon,GB
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Answer: 
When using a Truvativ/SRAM crankset; a GXP crankset is required to run it effectively on the bike.

Whether the bike has a Threaded or Pressfit bottom bracket; both options are available.
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4 months, 3 weeks ago
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Age: 65 or over
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4 months, 1 week ago
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sydney,AU
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Answer: 
The BB90 is intended for use with a Shimano XTR Mountain Bike Crankset; it is cross-compatible but not necessarily optimal.

Using a Road specific bottom bracket could be the upgrade required for better performance on your bike.
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4 months, 1 week ago
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What bottom bracket/crank can I use

Hi I am looking to build up a bike, I have a Titus fireline ti frame which has a 73mm width for the bottom bracket and I was looking to get the Hope bottom bracket and run it on a 10 speed double crank (probably looking at the shimano XT). What would I need to make this all work as they don't look like they have the spindles included? Previously I have used the octalink bottom brackets and corresponding crank on my other bike but I get through these in no time.
Many thanks in advance
Laurence
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4 months ago
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Hoddesdon,GB
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Answer: 
This bottom bracket is compatible with the Shimano Hollowtech II cranksets (see suggestion below) for which the new Shimano 10-speed cranks all have.

The spindle is integrated into the crankset and the bottom bracket acts as a bearing housing for the crankset to mount through.
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4 months ago
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Bottom bracket

I have a whyte 901 with a SRAM GXP bottom bracket and Crankset SRAM FC S1000, GXP, 39-26, 10 Speed, Double Compact.

I'm looking to upgrade my bottom bracket to ceramic and wonder your best suggestion?

SRAM GXP BB ceramic or hope ceramic?

Thanks
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3 months, 1 week ago
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Answer: 
Due to the tapered spindle design in SRAM cranks; it is best to stick with the manufacturers bottom bracket for the best performance (and warranty).
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3 months, 1 week ago
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1 answer

Threadless suqare taper bottom bracket.

Dear Sirs,
Any advice for threadless bottom bracket 68mm (square taper) for an old batavus bycicle?
e.g. the old one has an axle with 2 seals pressed into the frame, close with mud guards, no threads at all, even no cups for seals.
Age: 25 to 34
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2 months, 4 weeks ago
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Shlisselburg,RU
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Answer: 
К сожалению, в продаже не представлена нужная Вам модель каретки. Возможно Вам смогут помочь распостронители Bratavus :

http://www.fixedgearfrenzy.com/acor...
2 months, 2 weeks ago
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Scelta movimento centrale

Buongiorno,
Sul mio telaio (Kona Satori 2013) va installato un movimento centrale tipo Pressfit bb92. Sul sito però trovo solo il BB91. Va bene ugualmente ? il diametro della scatola dovrebbe essere 41 mm.
E' disponibile un attrezzo per il montaggio delle calotte ?

Grazie

Enrico
Age: 35 to 44
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2 months, 2 weeks ago
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Monteriggioni,IT
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Answer: 
Confermiamo che il movimento centrale like Shimano BB91 MTB Press Fit Bottom Bracket é in realta un BB92, quindi sara perfettamente compatibile con il tuo telaio e con una guarnitura con asse da 24mm. Consigliamo di far effettuare l'installazione da un meccanico o negozio specializzato.
2 months, 1 week ago
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