|Cyclo-cross World Championships 2022|
|Dates: 29-30 January Venue: Fayetteville, Arkansas, USA|
|Coverage: Saturday 29th Jan 1650-1800 GMT - Junior women's race, 2020-2140 GMT - Women's elite race. Sunday 30th Jan 2020-2200 GMT - Men's elite race. Watch via the Red Button, BBC iPlayer and the BBC Sport website|
Time trial bikes are becoming too dangerous for riders to train with on public roads, says Egan Bernal's Ineos team-mate Tom Pidcock.
Pidcock, 22, believes the serious injuries suffered by Bernal on Monday, and his own crash in June, could be a result of the riding position.
"Positions are getting more and more extreme and we spend more time trying to hold these positions," he said.
"You don't necessarily see where you're going."
Briton Pidcock worries that the crash - which has left 2019 Tour de France winner Bernal in intensive care following surgery on his spine and several other fractures - could also have been caused by riding a bike designed for pure speed rather than agility on the road.
Time trial bikes are used when riders compete separately against the clock, and require an aerodynamic, tucked position, in which riders must keep their head low and hold their hands directly out in front of them.
"It's evident now where it's getting quite dangerous," Pidcock told BBC Sport.
"I don't think we need to stop progressing, but think about how we can train in a safer way and try and mitigate these crashes.
"I crashed on a time trial bike, Ben [Turner, Ineos team-mate] crashed on a time trial bike. Egan's now crashed - it's getting quite extreme, the position. I think that's the biggest causes of the crashes recently."
Pidcock, who is one of the favourites to win the World Cyclo-cross Championship on Sunday, suffered a broken collarbone in a crash on a time trial bike during training in Andorra last year and missed the Tour of Switzerland as a result.
Two months later he had recovered sufficiently to win the Olympic mountain bike title.
Bernal, 25, had spinal surgery and other procedures after he sustained back, leg, knee and chest injuries when he hit the back of a bus at high speed while training in Colombia.
Doctors said on Tuesday that he can move all four limbs, while his team added that he "remains in a stable condition after two successful surgeries".