"Minorem ne contempseris." - Dionysius Cato
On Wed, 24 Jan 2007 15:20:49 +0100, "James Thomson"
<
[email protected]> wrote:
>I've got a few questions for anyone using a Miche Primato track bottom
>bracket:
>
>Is the axle hollow or solid?
Solid.
>
>Is it a completely sealed unit, or are the bearings replaceable?
The cartridge is a steel cylinder which houses a sealed bearing at
each end. There is no bearing number that appears on its outer seal.
The bearings are not replaceable, but the cost of a new unit is so
modest that such service would normally be impractical anyway.
>
>What's your impression of overall quality, durability, bearing smoothness,
>sealing, etc.
In my estimation, their quality does not exceed basic competence, but
concomitantly their cost is a small fraction of premium bottom bracket
models. The absence of any lockring to help secure the unit's cups may
make installations in Italian bottom bracket shells occasionally
troublesome.
>
>and finally for those with a Vernier caliper:
>
>What's the internal diameter of the cups?
The outer diameter of the shell cartridge is 28 mm. The cups are sized
to suit.
>
>Thanks,
No worries. There's a photo of the unit here:
http://www.businesscycles.com/tbb-miche.htm
>
>James Thomson
>
-------------------------------
John Dacey
Business Cycles, Miami, Florida
Since 1983
Comprehensive catalogue of track equipment: online since 1996
http://www.businesscycles.com
-------------------------------