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Re: ALLOY 5 105 VS ALLOY 6 TIAGRA

GidmanR
20 August, 2012 02:55PM
The advice given earlier is correct. What isn't mentioned is fit. Does the bike fit you? The intended usage is important, because, if you want to race, you might need a bike with a lower front end, or head tube. This might give back problems on longer rides. If you want all-day comfort, then a more relaxed frame might be better, where the head tube is longer. Also important are the contact points between you and the bike. These are pedals, bars and saddle. It's possible to change saddle and pedals relatively easily, but bars are slightly more complex. Again, the but is, at what cost? After spending about £800, you want to be able to ride your bike, not have to upgrade components. You should only have to do that as they wear out. Look around at other bike shops. See if you can try before you buy. It's often possible to buy bikes much more cheaply from online only retailers than from those who sell only through the high street. They don't have to have extra mark-up for traders. BUT, you will have to source your own servicing.

As to BB30 versus threaded bottom brackets. Either is easily seviced, and readily available. What matters is what make of chainset will then fit that bottom bracket. For example, Shimano don't make chainsets for BB30, but do for bottom brackets where the bearings screw-in. Mixing and matching between manufacturers may result in slightly inferior changing between gears, but this will be slight.

As to the difference between Tiagra and 105, the main one is in the routing of the gear cable. In 105, it's hidden under the bar tape, in Tiagra it exits from the side of the lever. There are slight differences in finish, but after a few miles, the dirt you pick up hides that. Both operate well, especially if kept clean.

Other considerations are, will you use your bike to commute? If so, will you need to fit a rack or mudguards? Will the bike you choose have the relevant fittings on the frame? Does your employer operate the Cycle to Work scheme, whereby you can obtain help in purchasing?

Hope this helps.
Subject Author Posted

ALLOY 5 105 VS ALLOY 6 TIAGRA

nomadski 14 August, 2012 11:55PM

Re: ALLOY 5 105 VS ALLOY 6 TIAGRA

cotterpin 15 August, 2012 01:07PM

Re: ALLOY 5 105 VS ALLOY 6 TIAGRA

DocB 15 August, 2012 07:29PM

Re: ALLOY 5 105 VS ALLOY 6 TIAGRA

nomadski 15 August, 2012 10:40PM

Re: ALLOY 5 105 VS ALLOY 6 TIAGRA

nomadski 15 August, 2012 11:08PM

Re: ALLOY 5 105 VS ALLOY 6 TIAGRA

GidmanR 20 August, 2012 02:55PM



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