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Is Shimano 105 the lowest-end splined bottom bracket?(2 posts)

Is Shimano 105 the lowest-end splined bottom bracket?Eug
May 26, 2003 7:19 AM
I dunno what my splined BB is on my 2002 Trek 2000 (and I don't want to remove it). The bike comes with mainly 105 parts, with a little bit of Tiagra thrown in. I'm thus assuming I've got a 105 BB, but I dunno for sure.

BTW, Shimano's website lists no specs for Tiagra and below, and for 105 and Ultegra, it doesn't list a Shimano triple BB for some reason. Besides the small 19 g weight difference (according to's bike config page) is there any other significant difference?

I wasn't planning on upgrading any time soon, but I'm interested nonetheless.
re: yesRusty Coggs
May 26, 2003 8:15 AM
105 9 speed crank,splined BB ....tiagra crank,square taper BB