SAB continue to show that aluminium still has a place in a world seemingly run by carbon. The high-quality aluminium tubing in the MASTER XC has been expertly crafted to keep weight to a minimum while optimising strength and stiffness for a truly high performance ride.
If you examine the photo, you'll see that each tube is carefully tapered and contoured for optimal stiffness at weld points while allowing subtle compliance in the right places to introduce extra comfort into the ride. It's the fabled 'lateral stiffness, vertical compliance' that people talk about in frame design. The frame stays stiff side to side so that pedalling and pulling on the bars during hard efforts does not affect handling. At the same time, vertical shocks - e.g. when you hit a bump - are partially absorbed to reduce rider fatigue.
|Bottom Bracket||BSA Threaded|
|Fork Steerer||Straight 1 1/8"|
|Seat Clamp Diameter||34.9mm|
|Seat Post Diameter||31.6mm|
|Front Mech||34.9m clamp|
|Bottle Cages Bosses||2|
|Weight||1.49kg (50cm frame)|
|Frame Size||Seat Tube (mm)||Top Tube (mm)||Head Tube (mm)||Chain Stays (mm)|
NOT INCLUDED: Bottom bracket cable guide, rear mech hanger and barrel adjustors
|Seat-Tube Size (C-T)||48||50||52||55||58|
|Top-Tube Size (C-C)||51.5||52.5||54.5||56.5||57.5|
|Head Tube Size||120||135||150||170||200|
|Seat Tube Size||31.6||31.6||31.6||31.6||31.6|
|Head Set Type||1 1/8 Integrated||1 1/8 Integrated||1 1/8 Integrated||1 1/8 Integrated||1 1/8 Integrated|
|Front Mech Type||Band On||Band On||Band On||Band On||Band On|
|Rider Height||Inside Leg||Suggested Frame Size|
|less than 5'2"||less than 27"||48cm|
|5'2" to 5'7"||27"-28"||50cm|
|5'6" to 5'10"||28"-31"||52cm|
|5'9" to 6'1"||30"-34"||56cm|
|6' to 6'6"||33"-38"||58cm|
All frame size recommendations are approximate. A good fit will also depend on the correct choice of stem length, correct bike set-up for the rider and riding style.
Correct frame size choice can also depend on a rider’s torso and limb length.