Heavy Graphite Iron Shafts Make It Easier to Switch From Steel

Heavy Graphite Iron Shafts Make It Easier to Switch From Steel

As trends go, the move to heavy graphite iron shafts is intensifying.  I am talking about iron shafts that are in the 90 to 125 gram range.  This weight range is directly targeting golfers that have traditionally played standard weight steel and are looking for options in lighter weights and less vibration on off-center hits.  

Book a personal fitting now to see if a heavy graphite shaft may fit your swing.

Less Vibration but the Feel of Steel

A lot of players are looking for less vibration to alleviate pain from arthritic hands, golfer elbow or shoulder soreness.  Simply switching to a graphite shaft can reduce vibration over 30%.  Adding a softer grip like a Winn grip can help as well.  But, to keep the feel at impact of steel you need some material advantage.  Aerotech SteelFiber i95 and i110 shafts are the industry leaders in that regard.  Their shafts include steel fibers to improve the consistency and feel of those shafts.   New models include the FC 90 and FC 115.  The Veylix Arcane 100 includes some copper threads to achieve this feel as well.  The Mitsubishi Chemical Golf OTi shafts use a different technique of braiding the prepreg materials to give stronger feel yet less vibration.  UST Mamiya uses special prepreg materials as well in their Recoil and Recoil Prototype shafts to give the weight and feel of graphite.  A brand new entrant into to graphite iron shafts this year is KBS or KB Steel.  Their new line of TGI shafts in the heavier weights definitely feels like steel!  Other manufacturers like ACCRA, Graphite Design, Fujikura, Mitsubishi Chemical Golf, and OBAN make heavy graphite iron shafts but may or may not feel like their steel counterparts.  Expect to see new heavier offerings from Project X later in 2018.

Similar Launch and Spin to Steel

If you are looking for similar launch and spin to your current steel shafts you have to be pretty careful.  The heavier the graphite shaft, i.e. 110 grams and heavier, the lower the launch, lower the spin, and harsher the feel.  That is because some of the heavy graphite shafts are actually designed to give similar ball flight as a Dynamic Gold S300 or X100 for example.  This is especially evident in the Aerotech SteelFiber 110 CWT and Recoil Prototype shafts.

Consistency versus Steel

A common knock on graphite shafts has been the inconsistency of performance.  I would say this is still true in lighter weight (40 to 70 gram) graphite shafts, especially if all you are doing is following manufacturers tipping instructions for installing them.  In these new heavier graphite shafts, the consistency from shaft to shaft is much higher.  That being said, we still frequency match, spine align, and swing weight each club in a set of irons to make sure they a built consistently.  Read more about our process here.

Our Most Popular Heavy Graphite Shafts

With the new shafts from ACCRA, Aerotech and KBS, I am sure the new models will change this list, however, our most popular shafts in these heavier weights are:

Aerotech SteelFiber i95 and i110 (both parallel and CWT)

Mitsubishi Chemical Golf OTi 95

OBAN i93 and i103

UST Mamiya Recoil 95 and 110

Book a personal fitting now to see if a heavy graphite shaft may fit your swing.

Or ,get a free online fitting now to see if a heavy graphite shaft may fit your swing.


Our static test results:

Based upon our testing, here is a chart of weight, launch and spin of the shafts we feel give the best performance:

Manufacturer Model Weight-grams Tip Flexes Launch Spin Torque
Weight Class 90-99
   ACCRA Tour 90i TiMesh 90 Par S/X Mid Mid 3
   ACCRA iCWT 95 with TiMesh 95 Taper S/X Mid Mid 2.5
   Aerotech SteelFiber i95 CW 93 Taper R/S/X Mid Mid 3.2
   Aerotech SteelFiber FC 90 CW 91 Taper R/S Variable Variable 3.2
   Fujikura Pro 95 99 Taper R/S Mid-High Mid-High 3.6
   Graphite Design Tour AD 95 98 Taper S/X Low Low 2.3
   KB Steel TGI 90 90 Taper S Low-Mid Low-Mid 2.4
   KB Steel TGI 95 96 Taper S Low-Mid Low-Mid 2.1
   Mitsubishi Chemical Golf Oti 85 90 Par R/S Mid Mid 3.3
   Mitsubishi Chemical Golf Oti 95 95 Par R/S Mid Mid 3.3
   OBAN Oi 93 96 Par R/S Mid/High Mid/High 2.8
   UST Mamiya Recoil 95 96 Taper R/S Mid Mid 3.7
   UST Mamiya Recoil 95 Prototype 96 Taper R/S Low-Mid Low-Mid 3.7
Weight Class 100-109
   ACCRA Tour 100i TiMesh 100 Par S/X Low-Mid Low-Mid 3
   ACCRA iCWT 105 with TiMesh 105 Taper X Low-Mid Low-Mid 2.2
   Aldila VS Proto 100 103 Taper R/S/X Low-Mid Low-Mid 2.8
   Graphite Design Tour AD 105 107 Taper S/X Mid Mid 2.2
   KB Steel TGI 100 98.5 Taper X Low Low 1.8
   Mitsubishi Chemical Golf Oti 100 100 Taper S/X Low-Mid Low-Mid 2.6
   OBAN Oi 103 102 Par S Mid/High Mid/High 2.8
   UST Mamiya Recoil 110 109 Taper S Mid Mid 3.5
Weight Class 110-119
   ACCRA Tour 110i TiMesh 110 Par S/X Low-Mid Low-Mid 3
   Aerotech i110 CW 108 Taper R/S/X Mid Mid 2.7
   Graphite Design Tour AD 115 114 Taper S/X Mid Mid 2.2
   KB Steel TGI 110 111 Taper X Low Low 1.9
   Mitsubishi Chemical Golf Oti 110 112 Taper S/X Low-Mid Low-Mid 2.4
   UST Mamiya Recoil 110 Prototype 110 Taper S/X Mid Mid 2.4
Weight Class Over 120
   Aerotech i125 CW 126 Taper X Low Low 2.5
   Mitsubishi Chemical Golf Oti 120 121 Taper X Low-Mid Low-Mid 2.2
   UST Mamiya Recoil Prototype 125 124 Taper S/X Low-Mid Low-Mid 2.6


Dan Sueltz