Looking at getting a Ridley Noah size Med. I need 69.85CM (27.5") from center of BB to top of saddle. I know that it includes a 15mm adjustment clip. Please take into consideration that I might adjust the saddle up or down depending on future saddle or shoe/pedal purchase. I know that the LG. frame will not work. I am pretty sure the Med. will work. I have a pant inseam of 30". LBS is not a dealer so he can not really help me with the sizing, but we think we are ok with the Med.QBP has allowed him a purchase since there are no dealers within 400 miles. Thanks to everyone who can help.
LeMond1
Yeah...height needed.
I'm 6'1" and have a cycling inseam of nearly 34 inches and ride a medium. My seat height on my Helium is 78cm, front center of BB to top of saddle.
From the minimal amount of info you've given us to work with, and comparing your seat height to my own, I'd say a medium may be too big for you.
Ridleys size out BIG.
I'm 6'1" and have a cycling inseam of nearly 34 inches and ride a medium. My seat height on my Helium is 78cm, front center of BB to top of saddle.
From the minimal amount of info you've given us to work with, and comparing your seat height to my own, I'd say a medium may be too big for you.
Ridleys size out BIG.
I agree. There isn't enough info to provide any useful advice. Judging from your ID this isn't your first road bike, so provide that info or (at least) your current effective top tube, stem length/ angle - assuming it fits, of course.backinthesaddle said:
IME Ridley's run very big, so keeping that in mind, I'm guessing that a medium might be too big for you because my saddle height is 68.2cm's - 16mm's shorter than yours and I'd take an XS. But that aside, IMO reach requirements need to be established before placing an order.
I am going with the Med. because I need the 55-56.5 top tube length. 27.5" 69.85CM is the measurement on the Damocles that I am currently riding. THis measurement is from the center of the BB to the top of the saddle. I just wanted to make sure I can cut the seatmast down to that height. I will need a little play for future pedals, saddles etc.... I was hoping somenone had a Med. Noah with roughly the same measurment or inseam length. I had someone tell me I had 77cm to the top, and I could cut about 20cm off. This would confirm that I could cut it down to the 69.85cm height that I need.
Well, now it makes sense to me, thanks. I think you can get a 40 mm (in lieu of the 15 mm you mentioned) adjustment clip if a future adjustment falls out of the 15 mm range. When making your where-to-cut calculations, keep in mind that not all saddles have the same rail-to-seating surface dimension. Hopefully someone with a Noah will chime in here.LeMond1 said:
advice...
If 70cm is your accurate saddle height, the proper vertical size you be an XS or maybe and S, but not an M.
If you want decent advice, you need to post your overall height and an accurate saddle height, at the minimum, if you don't want some goofy looking stem setup you also need to post your approximate saddle to bar drop.
The size S has a 145mm head tube which is quite tall for the TT length. That HT length is too tall, even for my 73cm saddle height.
If you have short legs and a long torso, the Ridley is not a good choice.
If 70cm is your accurate saddle height, the proper vertical size you be an XS or maybe and S, but not an M.
If you want decent advice, you need to post your overall height and an accurate saddle height, at the minimum, if you don't want some goofy looking stem setup you also need to post your approximate saddle to bar drop.
The size S has a 145mm head tube which is quite tall for the TT length. That HT length is too tall, even for my 73cm saddle height.
If you have short legs and a long torso, the Ridley is not a good choice.
Thanks Wim, you are correct saddle hgt. In cycling shorts I think I am roughly a 32" inseam 30" pant inseam. Greg at QBP called me back today. Looks like the Medium is going to work.
FYI: from QBP...Med Noah has 77CM MAX & 61CM MIN seatmast.( I fall into this min-max @ 69.5CM) You can not cut the seatmast any lower than 61CM. If your BB to Saddle is 63CM or lower you better call QBP, or your dealer before you purchase a medium frame. The seat clip must fit the upper part of the seatmast for it to clamp. Cutting it to short will not allow you to add the clip. Thanks for all who responed to this.
FYI: from QBP...Med Noah has 77CM MAX & 61CM MIN seatmast.( I fall into this min-max @ 69.5CM) You can not cut the seatmast any lower than 61CM. If your BB to Saddle is 63CM or lower you better call QBP, or your dealer before you purchase a medium frame. The seat clip must fit the upper part of the seatmast for it to clamp. Cutting it to short will not allow you to add the clip. Thanks for all who responed to this.
You never answered the height question. How about stem length?
I just do not think the medium Noah will fit, even taking into consideration the fact that you currently ride a Damocles. Is the Damocles a medium?
If your seat height is 70cm on a medium Ridley frame, and you need the 56.5 top tube, you are either:
A) riding the completely wrong size bike
B) getting bad advice
C) built like an orangutan
Like I said, my seat height is 10cm higher than yours and I ride a medium Helium with a 120mm stem. If you need the squat seat height measurement, and you're running a nubby stem (80/90/100), then the medium Noah is too big, period.
The reason the seatmast cap must be above 63cm has ZERO to do with fit. It has to do with the carbon layup in the mast itself.
The STOCK seatmast cap gives you 15mm of adjustment through the use of alu shims/spacers that fit inside the cap, on top of the mast. The extended cap gives you 40mm. I have both, and use the extended one for no other reason than it fits deeper onto the seatmast.
You must also take into consideration that you MUST use ONE of the shims/spacers on the top of the seatmast, between the carbon and the alu of the cap, so you really don't have the full 15mm of adjustment that you think you do.
And yes, the comparison is valid as the Helium and Noah use exactly the same geos.
I just do not think the medium Noah will fit, even taking into consideration the fact that you currently ride a Damocles. Is the Damocles a medium?
If your seat height is 70cm on a medium Ridley frame, and you need the 56.5 top tube, you are either:
A) riding the completely wrong size bike
B) getting bad advice
C) built like an orangutan
Like I said, my seat height is 10cm higher than yours and I ride a medium Helium with a 120mm stem. If you need the squat seat height measurement, and you're running a nubby stem (80/90/100), then the medium Noah is too big, period.
The reason the seatmast cap must be above 63cm has ZERO to do with fit. It has to do with the carbon layup in the mast itself.
The STOCK seatmast cap gives you 15mm of adjustment through the use of alu shims/spacers that fit inside the cap, on top of the mast. The extended cap gives you 40mm. I have both, and use the extended one for no other reason than it fits deeper onto the seatmast.
You must also take into consideration that you MUST use ONE of the shims/spacers on the top of the seatmast, between the carbon and the alu of the cap, so you really don't have the full 15mm of adjustment that you think you do.
And yes, the comparison is valid as the Helium and Noah use exactly the same geos.
HGT? I am 5' 10" tall 30" pant inseam roughly 32" in cycling shorts.
"My Damocles is a medium. From the center of BB to top of saddle this measurement is 27.5 (69.85CM) THIS WOULD NEVER CHANGE NO MATTER WHAT I PURCHASED USING - SAME SADDLE/PEDALS/CRANKS) Small Noah frame is to small! If I had a cutom builder build me a frame it would be a 53.5CM seat tube and 55.8-56 CM top tube with 12-13CM stem depending on setback. I have a long torso! The sloping TT on the Ridley bikes show a 56.5CM, but it really is a 55.0CM to 55.25 TT at most. I ride the Damocles with a slight setback post and a 13CM stem. I had to make sure I could cut the seatmast and fit on the Noah. I always had fitting problems, as I could never afford the custom frames. Today with carbon being everything, custom is still out of reach. Viner or Colnago could build you one for $6000-8000. Past Cannondale was a 55CM seat & 55.25 TT and I ran a 14CM stem on that bike with a AC seatpost with the saddle placed back.
"My Damocles is a medium. From the center of BB to top of saddle this measurement is 27.5 (69.85CM) THIS WOULD NEVER CHANGE NO MATTER WHAT I PURCHASED USING - SAME SADDLE/PEDALS/CRANKS) Small Noah frame is to small! If I had a cutom builder build me a frame it would be a 53.5CM seat tube and 55.8-56 CM top tube with 12-13CM stem depending on setback. I have a long torso! The sloping TT on the Ridley bikes show a 56.5CM, but it really is a 55.0CM to 55.25 TT at most. I ride the Damocles with a slight setback post and a 13CM stem. I had to make sure I could cut the seatmast and fit on the Noah. I always had fitting problems, as I could never afford the custom frames. Today with carbon being everything, custom is still out of reach. Viner or Colnago could build you one for $6000-8000. Past Cannondale was a 55CM seat & 55.25 TT and I ran a 14CM stem on that bike with a AC seatpost with the saddle placed back.
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