My girlfriend and I just returned from a cycling trip (from Illinois) to Utah, where other than a short local ride, she put the first serious mileage on her new Trek 1500 WSD.
Her first complaint, she wanted a lower gear for the hills. According to the Trek website (the bike is at her house) it comes with 52/42/30 rings and a 12-26 cassette. The shifters and derailleurs are 105. Since of course we didn't get any of the Shimano Service Instructions with the bike, can anyone supply the capacity specs for this combination? And further, does anyone know the real limits, since this seems to always exceed Shimano's specs. ;-)
My girlfriend and I just returned from a cycling trip (from Illinois) to Utah, where other than a short local ride, she put the first serious mileage on her new Trek 1500 WSD.
Her first complaint, she wanted a lower gear for the hills. According to the Trek website (the bike is at her house) it comes with 52/42/30 rings and a 12-26 cassette. The shifters and derailleurs are 105. Since of course we didn't get any of the Shimano Service Instructions with the bike, can anyone supply the capacity specs for this combination?
Front der: 22T Rear der total capacity: 37T, max sprocket: 27T
The crank can take an inner ring down to 24T and a middle down to 38T. Something like 50/39/26 would make a nice difference, then the cassette could be changed as well if yet lower gears were still needed.
Quoted message said:
And further, does anyone know the real limits, since this seems to always exceed Shimano's specs. ;-)
Good question -- which I'll leave to the Shimano users (I now use Campagnolo, and have pushed their capacities by a few teeth). It will help to keep the chain as short as possible for the big-big and to avoid the small-small combinations.
My girlfriend and I just returned from a cycling trip (from Illinois) to Utah, where other than a short local ride, she put the first serious mileage on her new Trek 1500 WSD.
Her first complaint, she wanted a lower gear for the hills. According to the Trek website (the bike is at her house) it comes with 52/42/30 rings and a 12-26 cassette. The shifters and derailleurs are 105. Since of course we didn't get any of the Shimano Service Instructions with the bike, can anyone supply the capacity specs for this combination? And further, does anyone know the real limits, since this seems to always exceed Shimano's specs. ;-)
You can use a 30t biggest cog w/o changing the rear der. If you do, you need a longer cage rear der since the 'road' triple rear ders have pretty short cages and you need someplace to put the extra chain.
My girlfriend and I just returned from a cycling trip (from Illinois) to Utah, where other than a short local ride, she put the first serious mileage on her new Trek 1500 WSD.
Her first complaint, she wanted a lower gear for the hills. According to the Trek website (the bike is at her house) it comes with 52/42/30 rings and a 12-26 cassette. The shifters and derailleurs are 105. Since of course we didn't get any of the Shimano Service Instructions with the bike, can anyone supply the capacity specs for this combination?
Front der: 22T Rear der total capacity: 37T, max sprocket: 27T
MaX Sprocket is '27t' since that's the largest road cog they make. 30t w/o problem in experience.
Campagnolo says 29t as well altho I have used a 11-34, long cage der, shimano MTB cog/wheel w/o problem.
