SE Big Mountain 21 29er Mountain Bike

Item # YB-BGM21
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MSRP: $369.99
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SE Big Mountain 21 29er Mountain Bike
The SE Big Mountain 21 29" mountain bike is just what you need to make short work of rides throughout your neighborhood or on local trails. 29ers offer decreased rolling resistance, increased traction when cornering, and improved ground clearance which all combine to make each ride a pleasure. The Big Mountain 21 features a steel frame plus a suspension fork with 50mm of travel for great ride quality on dirt or asphalt. The 21 in this bike's name refers to the 3x7-speed drivetrain which provides a wide range of gear options and the Shimano components ensure smooth, reliable shifting.
  • Elios steel frame ensures strength and durability
  • 50mm of suspension travel enhances control on bumpy terrain
  • 3x7-speed Shimano drivetrain features easy to use Revo twist shifter
  • Linear pull rim brakes deliver plenty of stopping power
SE Big Mountain 21 29er Mountain Bike
  • FRAME Elios 1 Hi Ten steel, cold forged rear dropouts, double water bottle mounts
  • FORK HL suspension w/ 50mm travel
  • HEADSET Neco, 1-1/8" semi-integrated w/ caged bearings
  • CRANKSET Prowheel, 48/38/28T, 7-speed
  • BOTTOM BRACKET Square taper sealed
  • SHIFTERS Shimano Tourney Revo Shift, 3x7-speed
  • LEVERS Alloy 3-finger lever w/ resin handlebar mount
  • HANDLEBAR Steel, 30mm rise, 6-degree sweep, 25.4mm diameter
  • STEM Steel, 25.4mm clamp diameter, +/- 10-degre rise
  • FRONT DERAILLEUR Shimano TZ-31, band type 31.8mm
  • REAR DERAILLEUR Shimano Tourney, 7-speed
  • CASSETTE Shimano Tourney freewheel, 14-28T, 7-speed
  • BRAKES Alloy linear pull
  • WHEELSET Alloy 36H rims, alloy Formula hubs, ED Black spokes, brass nipples, steel quick realeases
  • TIRES Evolution, 29" x 2.0", 27 TPI
  • PEDALS 1-piece resin body w/ steel axle
  • SEATPOST Steel, 300mm length
  • SADDLE SE w/ foam padding, steel rails
  • CHAIN 7-speed
  • GRIPS/TAPE Kraton rubber, closed end
  • Rating 5


by PowerReviews
SE BikesSE Big Mountain 21 29er Mountain Bike

(based on 1 review)

Reviewed by 1 customer

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Love Love Love

By Bludvl9

from Raleigh NC

About Me Casual/ Recreational

Verified Buyer


  • Durable
  • Lightweight
  • Versatile


  • Heavy

Best Uses

  • Commuting/City
  • Mountain Biking
  • Road Biking

Comments about SE Bikes SE Big Mountain 21 29er Mountain Bike:

I do road and trails and it seems you are riding on air! Very comfortable for my height, 6'3". I have a few friends that are going to purchase one also!!

  • Cycling Style:
  • Comfort Oriented
  • Was this a gift?:
  • No

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SE Big Mountain 21 29er Mountain Bike

SE Big Mountain 21 29er Mountain Bike

Item No. »  YB-BGM21

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