I've been considering purchasing a Boardman Pro CX Cyclocross Road Bike Large 2010 (http://www.halfords.com/webapp/wcs/stores/servlet/product_storeId_10001_catalogId_10151_productId_736229_langId_-1_categoryId_165710#dtab).
The spec says the wheels are 700C and that it comes with 700 x 35C tyres. I'm wondering, should it be also possible to fit some thinner road tyres with sizes 700x20c, 700x23c or 700x25c?
Thanks.
