If you’ve got a taste for hills, this one’s about 30 miles. Scapegoat Hill to West Vale via Stainland, then Wakefield Road to Sowerby Bridge. Up Tuel Lane and left onto the Burnley Rd, as far as Mytholmroyd. Left up New Road onto the Cragg vale Climb, then at the top turn left and freewheel all the way to Ripponden on the A58. Choice here to drop back down to Sowerby Bridge then West vale back up to Stainland, and turn right up Marsden gate to head back to Scape via Quebec, or up the infamous Ripponden Bank to Barkisland, then straight on to Buckstones, then down the A640 home.
Another good leg stretcher for hills is Lockwood as Sanity Assasin suggests, up to Meltham via Netherton, and straight on up Wessenden Road to the Greenfield Rd. (a brutal 3km at 8% towards the top) Left from there takes you straight down for a sustained descent to Holmfirth, then back to Lockwood via Honley, or turn right at the Ford Pub and make you way across country lanes to Holmebridge, then left to Holmfirth. 18 miles if you go via Holmebridge. You could stretch it out to 25 if you go from Holmfirth to New Mill, then up to the Sovereign Crossroads at Shepley, then back into Huddersfield on the Penistone/Wkefield Rd to Aspley, then cut across Kings Mill Lane to return to Lockwood avoiding the town centre.