Crimping Ti Bars
- Thread starter WD Pro
- Start date
Just thought I would update this thread for future reference 
2 sets of BERTS turned up courtesy of ekiborter
As it turns out the BERTS are for the Titec / Bontrager 118g butted bars where I have the 150g plain gauge bars – therefore the diameter was a little bit big and they needed turning down to suit.
I found (what I thought at first to be useful) information on the bikepro site about the diameters wall thickness etc but the sums / measurements / components didn’t match up :? :-(
Taking an average ID of the bars and a average wall thickness based on 22.2mm OD my bars measured came out with a ID of 20.35mm
I turned the BERTS down to 20.32mm which allowed me to push them about half way in by hand before they got really tight. This seemed like it was going to work well so I covered them in Loctite and whacked them in
Standard BERTS and one modified BERT at the point where they got ‘tight’ :
I know 271 isn’t really supposed to be a ‘retainer’ but A) it’s the best I had at home and B) I don’t think they will move, even without any Loctite on at all
The other pair will be getting the same treatment but to suit the Ti flexstem bar on the Marin
Some weight weenie info :
• Titec Bontrager 150 PG TI Bars : 150.3g (uncut / no stem shim / no BERTS)
• BERTS for 150 bar : 11.9g (bar set / 2 off)
• BERTS for 118 bar : 15.3g (bar set / 2 off)
WD
2 sets of BERTS turned up courtesy of ekiborter
As it turns out the BERTS are for the Titec / Bontrager 118g butted bars where I have the 150g plain gauge bars – therefore the diameter was a little bit big and they needed turning down to suit.
I found (what I thought at first to be useful) information on the bikepro site about the diameters wall thickness etc but the sums / measurements / components didn’t match up :? :-(
Taking an average ID of the bars and a average wall thickness based on 22.2mm OD my bars measured came out with a ID of 20.35mm
I turned the BERTS down to 20.32mm which allowed me to push them about half way in by hand before they got really tight. This seemed like it was going to work well so I covered them in Loctite and whacked them in
Standard BERTS and one modified BERT at the point where they got ‘tight’ :
I know 271 isn’t really supposed to be a ‘retainer’ but A) it’s the best I had at home and B) I don’t think they will move, even without any Loctite on at all
The other pair will be getting the same treatment but to suit the Ti flexstem bar on the Marin
Some weight weenie info
:• Titec Bontrager 150 PG TI Bars : 150.3g (uncut / no stem shim / no BERTS)
• BERTS for 150 bar : 11.9g (bar set / 2 off)
• BERTS for 118 bar : 15.3g (bar set / 2 off)
WD
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