The cycle is a "Duchie shopper". The bike is to big for my wife. Is it possible to shorten it for her?
She is 5 ft (152 cm) tall. The bike has a 27 inch wheels. I want to shorten it by at least 2 inches (50 mm)
Can this be done?
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2 inches or 50 mm means quite a large mismatch. However, if the frame has enough standover clearance it may not be game over.
Firstly, you'll want to move the saddle as much forwards as you can. This reduces the saddle-to-handlebar distance.
Secondly, you'll want to change the handlebar stem to as short stem as you can find. Common stem lengths are perhaps 9 cm, you could find as short as 6 cm stem, reducing 3 cm.
If you combine 3 cm stem length reduction with 2 cm saddle movement forwards, you may have something that barely works.
If this doesn't work then you probably need to change the handlebar to something that has more backsweep.
Still, I'd recommend next time selecting a frame of proper size instead of assuming you can fix the fit later.