Anyone else have a problem with vibrations through the handlebars on their 12? I guess it's always been there, but it's particularly obvious at the moment cos I'm riding a 130km round-trip commute every day with light summer gloves on. The vibes aren't strong enough for me to be conscious of them, but my hands are getting a bit numb after 30km or so. Has anyone had a problem with this, and if so, have you done anything about it? Fitted thicker grips? My bike's a 2002 model B2 and the tyres, chain and sprockets are all getting close to replacement time, so I'm sure they're not helping the vibes.