Hi all, I'm new to the forums and biking in general. Im looking at 2 bikes and looking for advice on which to choose. I am about 5'5 and havent ridden a bike in years but am in good shape and very active. Im looking for a multipurpose mountain bike. I will be using it for flat terrain as well as offroad trails. While I wont be entering any races, my buddies and I are pretty competitive. Also would a 15 or 17' frame be better? Any help would be appreciated.
Motobecane 700ht
http://www.bikesdirect.com/products/...cane_700HT.htm
Frame Custom 7005 Aluminum Trail-Tuned POWER STAY frame, box section chainstays, bi-axial gussetted downtube, sculpted rear dropouts with replaceable rear derailleur hanger, 2x H2O bosses, International Standard rear disc mounts Detailed Picture Gallery
Fork RockShox Dart 2 Adjustable with Hydraulic damping
Crankset TruVativ 5D Aluminum Triple 22/32/42T 175mm (TruShift Rings)
Bottom Bracket Sealed Cartridge
Pedals ATB Beartrap (metal cages)
Front Derailleur Shimano Deore Mega 9 top swing
Rear Derailleur Shimano Deore XT long cage
Shifters Shimano Deore Mega 9 Speed STI Rapidfire Pods (27 speeds total)
Cassette/Freewheel Cassette 11-32T 9 Speed Hyperglide
Chain 9 Speed Z9000 Super Narrow
Hubs Formula DiscSpecific Aluminum (black) Sealed Ball Bearing mechanism
Spokes Stainless Steel
Rims WTB SpeedDisc Rims Double Wall Aluminum
Tires WTB Velociraptor Blackwall 26 x 2.10
Brakes TEKTRO AQUILA Mechanical Disc Brakes with Multi Pad Angle adjustments
Brake Levers Tektro for Disc
Headset Cane Creek Internal Sealed caged ball bearing VP A42E 1.125 inch
Handlebar Skye Comp Aluminum Riser
Stem Skye Comp Threadless Aluminum
Tape/Grip WTB Dual Compound
Saddle WTB Speed V with comfort groove
Seat Post Skye Aluminum Micro-Adjust
Seat Clamp

windser 29er
http://www.bikesdirect.com/products/...liff29comp.htm
Frame Altair 2 custom butted aluminum with PowerSection down tube, top tube/seat tube gusset, Hydro-formed top and down tube, Integrated head tube, water bottle mount. Rear triangle is Altair 2, custom tapered 7005 aluminum with Edge S-bend MonoStay, Cold forged dropout with CNC'D disc mount and replaceable hanger
Fork NEW Rock Shox Dart 3 29" w/Turn Key LockOut and 80mm Travel
Crankset TruVativ 5D 3.0, 22/32/44T
Bottom Bracket Sealed Cartridge Bearing ST
Pedals Wellgo ATB w/steel cage, toe clips and straps
Front Derailleur SRAM X.5, 34.9mm
Rear Derailleur SRAM X.5
Shifters SRAM X.5 Trigger, 27-speed
Cassette/Freewheel Sunrace CSM969-AVOS, 11-32T 9-speed
Chain KMC HG-73
Hubs Gravity Sealed Bearing Disc, 32H
Spokes 32 Stainless Steel 14 gauge
Rims WTB SpeedDisc AM 29" DW, 32H
Tires Maxxis Ignitor OR Kenda Nevegal OR Continental Mountain King
(NO Choice) 29 inch
Brakes Avid BB-5 Mechanical Disc w/Center Adjust, 160mm rotor
Brake Levers Avid FR-5 Forged Alloy 2 finger
Headset V.P. A-42E 1 1/8" Press Fit Integrated, 30mm spacers
Handlebar Windsor Pro Riser 15mm Aluminum 31.8mm
Stem Windsor 3D Forged Al 1 1/8"
Tape/Grip Dual Density Kraton rubber
Saddle WTB Speed V Comp
Seat Post Micro Adjust, 350mm x 31.6mm
Seat Clamp Superlite Alloy, 34.9mm Laser Etched

Thanks in advance