I have recently purchased a new G2 Reba that was taken off of a Fisher HiFi. I am waiting for it to be delivered but in the meantime, I figured out the trail numbers for different scenarios. Just a good way to think bikes while I am watching bowl games! I was considering a Fox F29 with 46mm offset for the Sultan until I found the G2 Reba(51mm offset) so I thought I would try it. I used the trail calculator from GTed's blog http://gtedproductions.blogspot.com/search?q=trail+calculator for my calculation. I have ridden the HiFi Pro 29 and really liked the handling. I really like the way my Sultan rides and it does not feel slow as the old Fisher geometry did but I want to make my Sultan ride a little bit more like the HiFi. I really like how quickly my Dos handles in the twisty Midwest singletrack as a race bike, so if I can make the Sultan just a little lighter steering without taking away the bike's ability to DH like a kamikaze, I should have the best of both worlds right?? :thumbsup: The Fisher website says that the HiFi has a trail figure of 71.7mm. Just for fun, I thought I would do some comparisons between the different frames. While figuring the HTA/Trail figures, I assumed the correct travel spec for the appropriate frame (i.e. 80mm travel for Dos and Paragon and 100mm for Sultan and HiFi) Here is what I found.
Information entered into the calculator:
Wheel Size: 29 inches
Sultan HTA: 71 Degrees
HiFi 29 HTA: 71 Degrees
Dos Niner HTA: 72 Degrees
Fisher Paragon 05 HTA: 71.5 Degrees
Fork Offset:
G2 Reba: 2.0 inches (51mm)
Reba: 1.5 inches (38mm)
F29 (non G2): 1.8 inches (46mm)
G2 Reba Trail Calculations for:
HiFi 29: 73.66mm
Sultan: 73.66mm
Dos Niner: 66.04mm
Paragon: 68.6mm
F29 Trail Calculations (44mm nonG2 offset) for:
Sultan:76.2mm
Dos Niner: 71.12mm
Paragon: 73.66mm
Reba (38mm offset) calculations for:
Sultan: 86.3mm
Dos Niner: 78.7mm
Paragon: 83.8mm
When I compare the specs of the HiFi and the specs of the Sultan, they are surprisingly close with a G2 Reba on both of them. The only glaring difference is the bottom bracket height. I also factored the added wheelbase of the G2 fork on the Sultan in these measurements.
HiFi Sultan
Wheelbase(mm) 1146.7 1148.38
Chain Stay(mm) 462.1 462.3
BB Height(mm) 320.0 337.82
Trail(mm) 73.6 73.6
Should be a fun comparison in handling with the G2 offset to try out on these three bikes. Now I just need the foot of snow to melt so I can make a fair comparison on dry ground! Here is the bike I plan to run the fork on:
Information entered into the calculator:
Wheel Size: 29 inches
Sultan HTA: 71 Degrees
HiFi 29 HTA: 71 Degrees
Dos Niner HTA: 72 Degrees
Fisher Paragon 05 HTA: 71.5 Degrees
Fork Offset:
G2 Reba: 2.0 inches (51mm)
Reba: 1.5 inches (38mm)
F29 (non G2): 1.8 inches (46mm)
G2 Reba Trail Calculations for:
HiFi 29: 73.66mm
Sultan: 73.66mm
Dos Niner: 66.04mm
Paragon: 68.6mm
F29 Trail Calculations (44mm nonG2 offset) for:
Sultan:76.2mm
Dos Niner: 71.12mm
Paragon: 73.66mm
Reba (38mm offset) calculations for:
Sultan: 86.3mm
Dos Niner: 78.7mm
Paragon: 83.8mm
When I compare the specs of the HiFi and the specs of the Sultan, they are surprisingly close with a G2 Reba on both of them. The only glaring difference is the bottom bracket height. I also factored the added wheelbase of the G2 fork on the Sultan in these measurements.
HiFi Sultan
Wheelbase(mm) 1146.7 1148.38
Chain Stay(mm) 462.1 462.3
BB Height(mm) 320.0 337.82
Trail(mm) 73.6 73.6
Should be a fun comparison in handling with the G2 offset to try out on these three bikes. Now I just need the foot of snow to melt so I can make a fair comparison on dry ground! Here is the bike I plan to run the fork on:
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