Well, yes, and no. If you want new parts, yes, you'll need to go to 8-speed. But if used parts are OK with you, just get on EBay and find a set of compatable old 7-speed road shifters. Better yet, maybe you can find a set of old stock 7-speed road shifters, and have never even been used. And, you can always just use your power-train as a friction-shifter. I rode like that for 30 years before they came out with this fancy stuff. We also rode with just 10,or 12 speeds, and managed to get where we were going, for quite a long time. (
I digress...sorry..)
I have one other alternative, that I have used on two of my bikes, one MTB, and one hybrid (
also referred to as comfort, or fitness bikes, but I despise that characterization. They are great long-distance bikes, when set up and equipped properly). Just replace the flat handlebars with either Scott Commuter handlebars, PRO Comfort bars, or Nashbar Trekking handlebars. They are all inexpensive (especially when used...) and are a nice compromise between straight and drop bars, and even have some of the advantages of aero bars. Your current shifters and brakes should fit on them with little or no modifications.
Here is a pic of one of my Urban Assault Long-Haul bikes with Nashbar Trekking handlebars on it (1998 Specialized Crossroads Hybrid). I am the only owner it has ever had. I regularly rider over 100 miles a week on this one (
I have no car or Drivers License...). I've done over a dozen century's with it, and never had any problems. My longest ride on it so far has been a 2-week ride from Chatsworth, Ga. to Destin Fla. (
around 1000 miles, round-trip), with around 60 pounds of gear (
30 of it was my inflatable kayak, paddle, etc...). I had no issues at all on the trip, and plan another one this year to Brunswick, Ga. or the Okeefenokee Swamp.
Originally Posted by tafi .
In most cases you would simply swap the bars and levers over to the correct (drop bar) type.
However, in this case you have only 7 speed. Road bike groupsets (and therefore the levers used) start at 8.
So you will need an entire 8 speed groupset and possibly a rear wheel to suit (8 speed needs cassettes, 7 speed uses freewheels).
In my opinion, this conversion is not worth it. Given that it is a "supermarket bike" this sort of conversion will easily triple the cost of the bike. If I were you I would either wear the bike out completely, or simply sell it off, before looking for a new road bike (from a bike shop) which is set up for the purpose.