Shimano tiagra 4700 flat bar brake leverstiagra caliper brake levers designed specifically for flat handlebars 222 mm diameter when used with super slr brake calipers features for use with super slr brake calipers using enhanced brake arch design aluminium construction to keep weight low and your bike looking good comes complete with both reach and cable adjusters for easy set upa 2 year warranty is offered with all shimano products from chain reaction cycles 3 years on dura ace and xtr pro