Tuesday, October 13, 2015

Gravel Bike Part 2: Components


I finally built up the gravel bike.

Drivetrain
Crankset: Sugino XD2 Triple Crankset with 2 chainrings + Salsa Chainguard
Bottom Bracket: Shimano
Front Derailleur: Shimano Deore XT FD-736
Rear Derailleur: Shimano Deore XT RD-M737
Cog: SASH 7 Speed 13/32
Cables and Hosing: Yokozuna Reaction
Chain: Wipperman 8SX
Pedals: Crank Brothers Eggbeater

I used 7-speed drivetrain components, as I thought they would be more reliable in the hash condition that grave races e.g. Trans Iowa offers, because of the larger cog spacing. I also happened to like the looks of the older Shimano components...



The crankset is a used Sugino triple cranksets that I got from eBay (as most other parts are). I only need 42T at most on this bike, so I went with 2 chainrings (Rivendell-style). I used this crankset for TIV9 (2013) on a different bike (Soma Double Cross) and it worked great, so I was saving it for this bike.

I like Wipperman chains, as they seem to last longer in my experience. Also I clean chains off the bike often, so their re-usuable connecting link comes handy.

Yokozuna's housings are much stiffer than other brands', so installation is a bit harder (but not really). Once installed, they should create less frictions.

Fizik's bar tapes are the best I know, but I will deeply regret that I chose white my "gravel" bike.



Cockpit
Headset: Chris King GripNut
Brakes: Paul Touring Canti
Brakes: Paul Touring Canti
Brake Levers: Cane Creek SCR5
Shifters: Shimano 600 SL-6400
Stem: Nitto Pearl 80mm
Handlebar: Nitto Dirtdrop RM-013 48cm
Handlebar Tape: Fizik Performance Tacky Bar Tape (3mm)

The handlebar, stem, and seatpost are all Nitto, and they are the amazingly beautiful. I am used to Compagnolo's brake hoods, so put similarly-shaped Cane Creek SCR5. The campy-style cable release pins are especially handy. I immediately noticed, though, that Cane Creek's brake hoods feels less comfortable on my hand (firmer and tiny bit bigger).

Brakes
Brakes: Paul Touring Cantilever Brakes

People have different opinions about Canti vs Disc for gravel bikes, but I followed suggestions by Guitar Ted (http://g-tedproductions.blogspot.com/2012/10/gravel-bikes-canti-or-disc.html) and Ari, and went with canti's. I don't use wide-profile canti brakes, as they are much weaker than the narrow profile brakes (in general) and has a narrow range of adjustment (http://velo-orange.blogspot.com/2012/08/breaking-it-down-grand-cru-cantilever.html). Rim brakes give me more options when I want to swap wheels, too.

Seat
Saddle: Brooks B-17 Flyer
Seatpost: Nitto S-65 27.2mm 250mm

B-17 Flyer is the most comfortable saddle I have used. When I did TIV9, I was on this saddle for 28hours or so and didn't have any problems. It's one of the parts that I would like to swap out in the future to cut the weight, but for now it stays on the bike.

Wheels
Hubs: Phil Wood 32h
Rims: Hed Belgium 32h
Tires: Clement X'Plor MSO 120TPI (40mm)

The wheelset is an odd ball: a strange mix of modern and classic looks, but functionally, they work great. With 32H spokes (straight 14 gauge, too), they are definitely over-built for me but whenever I hit a pothole, rock, etc, I appreciate that I have bombproof wheels. The Phil Wood takes 7-speed freewheel, not a cassette, and pretty much symmetrical -- I used to firmly believe that the symmetrically-built rear wheels are better (not so much now). The hubs feel so unnecessarily heavy, but it gives me a sense of security. These wheels are also in the list of potential parts to be swapped in the future, if I want to cut the weight. (A wheel builder at HED told me my wheelset is definitely overbuilt ("they will last for your life") and I could go with 20H/24H spokes even for Trans Iowa.)

Clement MSO is supposed to be one of the best gravel tires according to, again, Guitar Ted (http://g-tedproductions.blogspot.com/2012/03/box-o-goodness-part-ii.html) and Ari. So I followed their suggestions. I have tried a few other tires -- Challenge Gravel Grinder, WTB Nano 40C, Schwalbe Marathon Mondial, and Explore (discontinued for a long time). I am not really educated enough to tell the difference between the tires but I tend to agree. I am liking WTB Nano, too, though.

Accessories
Fenders: Velo Orange 700c Zeppelin 52mm
Bottle Cages: King Stainless Steel Cage

The fenders are only for the late Fall/early Spring rides (and the photos). They look great and (hopefully) will keep my feet (and bike) dry, clean and warm when the roads get nasty. They are pretty sturdy but get noisy if I go to local trails (Green Lakes, Morgan Hill, etc).



Friday, October 9, 2015

Gravel Bike Part 1: Frameset




A custom frameset built by John Fitzgerald (http://www.fitzcyclez.com//). This is my second custom frame (the first one by a single-person custom builder... I own a custom Serotta CXII, a tri bike, that was built by multiple people at Serotta). This bike was built primarily for gravel races, especially Trans Iowa, and for general fun rides and light touring.

I used the following bikes as the starting point and added a few personal requirements based on my experience at TIV9:
Specifically, my requirements were as follows:
  • Extra tire clearance (at least 40mm with fender, if not 45mm)
  • Single speed option (sliding drop out or horizontal dropout)
  • Extra bottle cage bosses on the bottom side of the down tube, if there is an enough space. 
  • Low BB
  • Cantilever brake bosses
  • Extra bottle cage bosses on the fork
  • Rack & fender eyelets 
  • Accept 1" threaded (quill) stem 
  • 27.2mm seat post preferred
  • Lugged frame 
  • 700c wheels

I was searching for the right frame builder during the winter, but all the frame builders that I found online were out of my budget (less than $2,000 for the frame + fork with lugs), until I found John's website (http://www.fitzcyclez.com/). I immediately liked his style, experience, and pricing. I emailed him on March 5th 2015 and I placed an order on the next day after just on email exchange. I filled in his surveys to determine the right geometry and materials (tubes), and we exchanged many emails to follow up. It was very clear that he pays attention to all the details and experienced enough to digest all the information to determine the optimal frameset for a given condition. 
After a few revision, this was the final geometry: 


Given my "riding style" (probably it just means I am not a super strong cyclist/sprinter) and height/weight (5'7" and 140-145lbs), John decided that following tubes specs:
  • TT: 28.6 True Temper OX Platinum (.7/.4/.7)
  • DT: 31.8 True Temper OX Platnium (.7/.4/.7)
  • ST: 28.6 True Temper S3 (.5/.4/.6)
  • HT: 31.8 True Temper OX Platinum: (.9)
  • SS: Dedacci
  • CS: Dedacci
  • Lugs: Pacenti
I was personally super excited to see S3 for ST -- given the plenty of use of OX and S3, this was going to be one of my lightest frameset! (Not that I measure the weight of my bikes...)
Oh, also you've got to love his "Mithril" decal!


One of the nice things about having a single-person custom builder building a bike for you is that you sometimes get photo-updates:






The frame came in on July 1st.


In the next post, I will describe how I built up this frameset.