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advice needed on a road bike

Posted: 2 Oct 2011, 7:34am
by k3vinjam3s
ive been commuting to work for over a year now and through the summer put in some miles (15-25 mile rides) on the country lanes local to me. the bike ive been using is a diamond back mountain back with front suspension and slicker tyres so is heavy and not fully suited. im wanting to give road cycling a lot more attention in the near future but im unsure of what type of bike to buy. i see these road bikes with drop down bars and they all seem small to me and potentially uncomfortable for my size. im 6'2" and a well built 18+ stone. ive looked at the hybrid style bikes with normal bars and slim tyres like road bikes. would this be a good comprimise or should a road bike with large frame be fine? id appreciate any advice on this area as im really unsure at the moment.

Re: advice needed on a road bike

Posted: 2 Oct 2011, 8:20am
by phil1965
looks like you need a 58cm frame......

Re: advice needed on a road bike

Posted: 2 Oct 2011, 8:26am
by meic
As this is a touring club forum, dont be surprised if you get recommended to buy a touring bike. :D

In the interest of balance you could try asking on other types of forum.

How much money do you WANT to spend?

A road bike can do the job, plenty of people get what you have asked for out of a road bike but it really is right on the edge of their limits.
Also your gearing will change dramatically from the very low gears of your MTB to the overly high gears that come on racers.

A less extreme option is the bikes sold under the Sportive or Audax label as they are a bit more rugged, can take slightly bigger tyres and mudguards, racks etc.

A light tourer will be slightly stronger and can take wider rims and tyres (which normally coincides with stronger wheels.)

Or a more substantial tourer like the Dawes Galaxy or a Surley Long Haul Trucker.
Both of which offer larger frames than many other bike models.

As a commuter you would probably benefit from mudguards.

When looking at a bike I would consider these as good pointers to check.

1) How big tyres can it take (with mudguards too). Most road bikes are hard pressed to get more than 25mm tyres.
2) 36 spoked wheels, if it has less it is probably not putting load carrying first.
3) Is the gearing suitable for me?

Re: advice needed on a road bike

Posted: 2 Oct 2011, 9:45am
by karlt
How long's your commute and do you have to carry much with you? If it's long but you can travel light, a road bike's more suitable than for a short commute with more to carry.

Re: advice needed on a road bike

Posted: 3 Oct 2011, 9:18am
by flat tyre
I had a similar query a few months ago. I got very good service and advice from my local bike store, who let me try the bike before finally deciding to buy. They aslo took a lot of time making sure the fit was right and setting it up for me. So, my recommendation is to find a good bike store.

Re: advice needed on a road bike

Posted: 3 Oct 2011, 9:56am
by Vorpal
Go to lots of bike shops and try lots of bikes. Don't buy the first thing that takes your fancy.

This will help you understand what you like (and don't like) about:
The different types and models of bikes
the bike shops you visit

I fpossible, ride them a bit further than just around the car park. When you have a list of criteria (size?, mudguards? pannier rack? handlebars?) for your new bike come back here for recommendations or look for a decent used one that meets your criteria. 8)

Good luck.

Re: advice needed on a road bike

Posted: 3 Oct 2011, 10:09am
by Ayesha
phil1965 wrote:looks like you need a 58cm frame......


I suggest OP reads CJ's comments in the latest Cycle magazine where he answers a question about saddle height.

He is absolutely correct to measure 'Leg length' by assessing 'Sitting height' and 'Standing height'.

For sizing a complete OTP bike, use CJ's 'leg length' assessment ( in bare feet ) and subtract 3 cm to get a 'Stand over height' of the road bike you need.

Frame size is not a function of standing height alone.

OP could also Google the Trek owner's manual for all of their bikes.

Re: advice needed on a road bike

Posted: 3 Oct 2011, 10:18am
by Ayesha
Vorpal wrote:Go to lots of bike shops and try lots of bikes. Don't buy the first thing that takes your fancy.

This will help you understand what you like (and don't like) about:
The different types and models of bikes
the bike shops you visit

I fpossible, ride them a bit further than just around the car park. When you have a list of criteria (size?, mudguards? pannier rack? handlebars?) for your new bike come back here for recommendations or look for a decent used one that meets your criteria. 8)

Good luck.


Yup, don't buy the first bike that takes your fancy.

Don't get disheartened if the ugliest thing in the shop is the 'just perfect' fit for you.

It is better to ride an ugly and comfortable bike than a pretty and painfull one. :wink:

Re: advice needed on a road bike

Posted: 3 Oct 2011, 11:03am
by hamster
I think a lot also depends on your commute. Is it country lanes which get muddy in the winter, or potholed streets with heavy traffic?
Either of these would suggest something sturdier with wider tyres (i.e. touring bike or simply replacing the forks on your MTB with rigid ones).

Whatever you choose, I would strongly advise something that takes a rack and mudguards (Uh-Oh here comes a touring bike :roll: ) simply because commuting in the winter is less fun if you get jetted with muddy water.

Re: advice needed on a road bike

Posted: 3 Oct 2011, 11:31am
by Ayesha
A popular choice amongst cycle club members is to buy a mid-range roadrace bike, e.g. Trek 2.3.
Fit slim full mudguards with plastic frame clamp fittings; and wider ( 25mm ) tyres.

In the summer, the mudguards are removed and 23mm OE tyres re-fitted for evening 50s.

The bike does not look 'out of place' in either situation.

Evans are having some reductions on the 2011 range. 58cm included. :)

Re: advice needed on a road bike

Posted: 3 Oct 2011, 1:24pm
by uphillbothways
k3vinjam3s wrote:ive been commuting to work for over a year now and through the summer put in some miles (15-25 mile rides) on the country lanes local to me. the bike ive been using is a diamond back mountain back with front suspension and slicker tyres so is heavy and not fully suited. im wanting to give road cycling a lot more attention in the near future but im unsure of what type of bike to buy. i see these road bikes with drop down bars and they all seem small to me and potentially uncomfortable for my size. im 6'2" and a well built 18+ stone. ive looked at the hybrid style bikes with normal bars and slim tyres like road bikes. would this be a good comprimise or should a road bike with large frame be fine? id appreciate any advice on this area as im really unsure at the moment.


Your height is fairly unexceptional and you should have no problem finding any kind of bike with a large enough frame. Riding a size too small is what leads to that hunched-over racing position, so be sure to try out a few sizes. I ride a frame that most bike salesmen would consider too big, as do a lot of people here - racers generally want small frames to get a good aerodynamic crouch, tourers and commuters are generally happier on a larger frame that provides a more upright position. Frame sizing varies between manufacturers, so don't just buy based on the stated size. You'll probably feel most comfortable on a bike sized such that the handlebars are about an inch above or below the level of the saddle, but it depends on your levels of flexibility. Bike shops can adjust the height of handlebars by an inch or two, or more if they change a part called the stem for one of a different shape - this should cost no more than £20.

Your weight is an issue, mainly regarding tyres and wheels. The smaller a tire and the greater a rider's weight, the more air pressure you need to pump into it. At your weight, the 23mm tyres that come on most racing bikes simply won't take enough pressure, so they'll feel squirmy and be more prone to punctures. You might also have problems with wheels - the racy sort with 24 or fewer spokes is designed for little 9 stone whippets, you want proper solid wheels with 36 spokes.

Fortunately there's a kind of bike that's a slightly more sturdy version of a road racing bike, often called an Audax or Sportive bike, designed to be quick and sporty, but more comfortable than a road racing bike. Look for one which can take 25mm or 28mm tyres with mudguards fitted. The best options I can think of are from the British company Dawes - their Sportif or Clubman models fit the bill nicely. They both have fittings to take mudguards and a pannier rack, which are vital accessories for commuting and day-to-day use.

Going sturdier still, you get to the sort of bike that many of us CTC members prefer, myself included - the Tourer. Somewhere in between a road bike and a mountain bike (but older than both), the tourer is built to cover long distances in comfort. They'll take big tyres with knobbly tread if needed, but are still reasonably quick with slick tyres. Tourers are built with long wheelbases for confident steering and a relaxed ride. They tend to be a bit heavy and dull compared to a racing bike, but they're also exceedingly practical and versatile - equally suited to popping to the shops or circumnavigating the world. The archetypal model of touring bike has for decades been the Dawes Galaxy - not an inexpensive bike, but one that will last for 20 years or more with a modicum of care. Budget options include the Dawes Vantage and the Edinburgh Country Traveller, both very practical choices for all kinds of leisure riding. Second-hand touring bikes start at about £300 on eBay, or less if you scout around locally.