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I have a bike, currently kitted out with an assortment of older Shimano components. I am planning to upgrade from the 8spd setup to a modern 10spd configuration, but have some questions regarding compatibility. The current bike has a Shimano 105 (RD-1050) rear derailer, 105 8spd cassette (11/23), newish (2007 vintage) Tiagra front derailer, RX 8spd shifters/brake levers, new Tiagra brake calipers, square taper BB and RSX 175mm cranks (52/42). A Shimano HG50 8spd chain completes the setup. Am I right in thinking that my 8spd cassette is interchangeable with a new 10spd cassette (Shimano or SRAM), so that if I change the cassette, shifters, chain and rear derailer, I will have a working 10spd system? I plan to upgrade to a compact crank and BB in the next stage of the conversion, to keep costs down. If this is feasible, would the following components be suitable?: SRAM PG1070 cassette (12-27 or 11-25) SRAM Rival carbon shifters SRAM Rival rear derailer SRAM PC1030 chain Comments and suggestions are welcome.

Does anyone have any opinions on Vitus frames? I am looking at a brand new Vitus Argal frame. From what I've read, I gather the Vitus brand is known for bonded Aluminium frames, which are apparently prone to flex. As I am tall, and the frame is large, would this be a problem? As far as I can see, the Argal is welded, not bonded, so would these concerns not apply? Thanks for any input.

Wish I were in Namibia...currently Johannesburg, but from Oshakati originally :-)

Thanks for the tips, guys. I'll check out these options.

Are the Killer Bees just for tubeless use? I am not currently using a tubeless setup on my bike.

Hi All, I am looking at getting a set of road tyres for my MTB, mainly to use for the 94.7 in November. Does anyone have any suggestions or recommendations? I am in Johannesburg, so if you know where I should look, that would also help. Thanks