With more and more "monster cross" events like Ironcross and dirt road ronde's or brevets popping up, it was time to upgrade my cross bike. No sense in spending all that time on a bike that is sized for someone with much longer legs than me.
My team picked up Trek sponsorship this year. The local Trek rep offered a really sweet deal to Alpine Clinic riders on Trek bikes and Bontrager apparel. When you think cross bikes, Trek may not be one of the first brands that come to mind. They do offer a fine bike, however, the Cronus Ultimate. I hesitated at first, as I'm not fond of SRAM shifters. The deal was just too good to pass up. I ordered a bike through our sponsoring shop, Rhino Bike Works.
Ultegra tubeless wheels. No need to upgrade these. I now have
two sets. Tubeless tires will go on soon.
The bike was in Trek stock and took just a few days to arrive at Rhino. The SRAM S900 crank that came on the bike had to go. It was 130mm BCD with 46/38 rings and had short 172.5mm arms. For the events I do, I need more range in gearing (top and bottom) and must stay with my standard crankarm length. I happened to have an new Ultegra compact crank laying around. Would this work? The new frame uses one of the zillion new bottom bracket anti-standards out there, something called BB90. My Shimano crank uses standard threaded in BB bearings. Turns out the outside interface of external BB bearings is 90mm, and Trek duplicated this with integrated pressed in bearings. No more external cups. You just need the right bearings for the crank you want to use. Matt just happened to have a set of Shimano bearings on hand and would fix me up when I came to pick the bike up.
Internal cable routing
Massive bottom bracket structure. Down tube is 90mm wide
at base! Bearings and crankarms are flush with frame.
I went to pick the bike up at Rhino in Plymouth after our ride in the Whites on Saturday. The bike in hand is amazingly lightweight. It weighs less than my Dean Ti road bike in fact. Is that nuts, or what? Matt swapped out the crankset for me, depsite the shop being crazy busy. Thanks Matt! I couldn't wait to take it for a spin on Sunday.
The canti brakes. Protrude, but highly effective.
Post and cable routing. I use Terry Fly saddles on nearly all
of my bikes, but this Bontrager saddle may be a keeper. No
issues after 2hr ride.
I mapped out a 25 mile loop of rooty singletrack, rail trails, pavement and rough carriage roads for a test ride, a bit of everything. I'll jump right to what I liked and disliked about the bike.
- The 90mm wide BB shell makes for the stiffest BB of any bike I've ridden. It is amazing how efficient this bike feels under power. My next road bike will use a BB90 bottom bracket standard.
- The Avid Shorty Ultimate brakes. They have at least 2x the stopping power of the canti's on my Ridley. They stick out though, and I wouldn't want to get snagged by one.
- The bike weighs 17 lbs and change with XT pedals and 34mm knobby tires. That's four pounds lighter than my Ridley.
- Very snappy, racy handling.
- Internal cable routing. Clean appearance and easier to clean after a messy ride.
- The bulge at the base of the SRAM hoods causes almost immediate ulnar nerve trouble in my hands. I will need to experiment with bar rotation or sliding the levers around on the bar.
- My toes can rub the front wheel. Probably due to racy geometry, but I also was wearing my new MTB shoes where I think I got the cleats a little too far back. Not a problem riding, but big problem if you miss clip-in and wobble. I could rub tire on Ridley with old shoes too, but it is easier to do on the Trek.
- SRAM index shifting is not crisp like Shimano's, especially when shifting to easier gears.
- White hood covers. In one ride they are already dirty.