GMC Topkick Features
GMC Topkick Features:
- Dual Suspension aluminum frame with 4 bar linkage system
- Suspension Fork with 90mm travel
- Shimano 21 speed index gearing
- Alloy Machined Rims
- Alloy Disc Brakes
- Full Alloy Frame
- Full Alloy Crank
- Frame Size 19″ with 26″ wheels
- Includes Kickstand and reflectors
- Quick Release Seat Clamp with aluminum seat post
- Grip Shifters
What do people say
This is a good bike – the best feature is the dual suspension. Light and easy dropping off curbs on the way to work – huge difference from my hardtail mountain bike.
Disc brakes are nice to have, on front and rear – work much better than rim brakes. To adjust them hold the brake lever in and tighten them down via a hex wrench on the opposite center of the disc brake until the pads are flush against the disc, then turn back until the brake lever has enough play in it.
The rims are v-shaped, and narrow – much more so than my other bikes. It was quite a job to add tuffy liners to to the tires. I think I will have a bike shop change the tire next time they need it. The hard part is getting the tire off and on those narrow rims. The people at REI said to squeeze on the sides of the tire as you put it on, so both ends go deep into the rim. Read a full review.
This bike is phenomenal, i enjoy riding it AFTER i assembled, i do not reccomend this bike to people who are begginers to the world of Mountain Bikes. I found NO assembly instructions for this bike inside like many others. Luckily i have assembled bikes before. When i opened the bikes packagind it wasnt the best box,I believe it was handled poorly. When assembling the bike i noticed the Disc Brakes took ALOT of tweaking. Read a full review.
I got this bike for my husband for his birthday. I put it together in about 2 1/2 hours myself, and test rode it, seems to be working well. The toughest thing was adjusting the disc brakes, which I had never done before. I found it easier to adjust like this: loosen all four bolts holding the caliper assembly on, then lock the brake, tighten the two bolts attaching the assembly, release the brake, spin the tire while manually fine-tuning the position of the pads while looking head-on to see a little daylight on each side of the disc and hear no rubbing, then tighten the remaining two bolts a little at a time while maintaining the position of the caliper by hand. I also had to tweak the inside pad 1/4 turn counter-clockwise, but it worked well! Just need to see how my hubby likes it. The bike looks great, but is heavy. Read a full review.
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