I have a new canyon speedmax on order and have contacted Canyon multiple times in an attempt to get them to give me the base bar stack height for a medium frame with the riser bar which is plus 50mm. No one there seems to know this measurement and instead they keep sending me the attached geometry stats that are a little more in depth then what you can find on their website. Since the riser bar justs adds to the complication because it is a sloping bar, I am determined to find the base bar stack with the flat bar and then I can just add the 50mm to that number to get the desired result. I have a very limited understanding of bike geometry but it appears from how the bike is made you could take the frame stack of 498mm and assume with the flat bar the base bar stack would be 498 but this doesn’t make sense when you look at the other geometry numbers. Additionally, this base bar stack would be very low based on looking at other tri bikes. Therefore, I feel like I am wrong in this calculation and one reason I feel it is wrong is because the lowest armpad stack height for the flat bar in the medium frame is 570mm according to the geometry numbers. There is no information stating the minimum stack height from the base bar to the pads but I would find it very hard to believe the minimum stack height between the base bar and pads would be 72mm.
Am I missing something between the correlation of frame stack and basebar stack height with how this bike is made? Could someone please give me their best guess as to what the base bar stack height for the flat bar would be for the medium frame? I have included some photos as well. Thanks.
Frame size S M L
Seat tube 510 539 573
Top tube 491 518 543
Head tube 63 93 109
Stack frame 469 4 498 513.5
Reach frame 412.7 435 457.6
Stem length 65 65 65
Fork rake 34 34 34
Seat post length 350 350 350
A "Stack armpad 1,2
" Riserbar 567 - 622 595 - 650 629 - 684
Flatbar 542 - 597 570 - 625 604 - 659
Dropbar 504 - 585 532 - 613 566 - 647
B "Reach Armpad ³
" Stem long 493 - 513 516 - 536 538 - 558
Stem short 439 - 493 462 - 516 484 - 538
C Head tube angle 73°
D Seat tube angle 80.5
E Chainstay length 420 420 420
F Wheel base 985 1016 1051
Bar width 410 410 410
crank length 172.5 175 175
1 maximum stack values are adjustable with enclosed spacer-set (2x20 mm, 3x5 mm each side)
² an additional spacer-set enables a 40 mm increase of the maximum stack values
³ minimum reach values are adjustable with enclosed switch plate kit
